Kevin Ryde > Math-NumSeq-68


This Release Math-NumSeq-68  [Download] [Browse 26 Jan 2014
Latest Release Math-NumSeq-71  [Download] [Browse 28 Jun 2014
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License The GNU General Public License, Version 3, June 2007
Special Files


Math::NumSeq number sequences     68
Math::NumSeq::Abundant abundant numbers, greater than sum of divisors     68
Math::NumSeq::AlgebraicContinued continued fraction expansion of algebraic numbers     68
Math::NumSeq::All all integers     68
Math::NumSeq::AllDigits digits of the integers     68
Math::NumSeq::AllPrimeFactors prime factors of the integers     68
Math::NumSeq::AlmostPrimes semiprimes and other fixed number of prime factors     68
Math::NumSeq::AsciiSelf sequence is its own ASCII digits     68
Math::NumSeq::BalancedBinary balanced 1,0 bits     68
Math::NumSeq::Base::Array     68
Math::NumSeq::Base::Cache     68
Math::NumSeq::Base::Digits     68
Math::NumSeq::Base::IterateIth iterate by calling ith() successively     68
Math::NumSeq::Base::IteratePred iterate by searching with pred()     68
Math::NumSeq::Base::Sparse     68
Math::NumSeq::BaumSweet Baum-Sweet sequence     68
Math::NumSeq::Beastly numbers containing digits "666"     68
Math::NumSeq::Catalan Catalan numbers (2n)! / (n!*(n+1)!)     68
Math::NumSeq::CollatzSteps steps in the "3n+1" problem     68
Math::NumSeq::ConcatNumbers concatenate digits of i, i+1     68
Math::NumSeq::Cubes cubes i**3     68
Math::NumSeq::CullenNumbers Cullen numbers i*2^i+1     68
Math::NumSeq::DedekindPsiCumulative cumulative Psi function     68
Math::NumSeq::DedekindPsiSteps psi function until 2^x*3^y     68
Math::NumSeq::DeletablePrimes primes deleting a digit repeatedly     68
Math::NumSeq::DigitCount count of a given digit     68
Math::NumSeq::DigitCountHigh count of given high digits     68
Math::NumSeq::DigitCountLow count of given low digits     68
Math::NumSeq::DigitLength length in digits     68
Math::NumSeq::DigitLengthCumulative total length in digits of numbers 1 to i     68
Math::NumSeq::DigitProduct product of digits     68
Math::NumSeq::DigitProductSteps multiplicative persistence and digital root     68
Math::NumSeq::DigitSum sum of digits, possibly with powering     68
Math::NumSeq::DigitSumModulo digit sum taken modulo a given modulus     68
Math::NumSeq::DivisorCount how many divisors     68
Math::NumSeq::DuffinianNumbers no common factor with sum of divisors     68
Math::NumSeq::Emirps primes backwards and forwards     68
Math::NumSeq::ErdosSelfridgeClass Erdos-Selfridge classification of primes     68
Math::NumSeq::Even even integers     68
Math::NumSeq::Expression mathematical expression values     68
Math::NumSeq::Factorials factorials i! = 1*2*...*i     68
Math::NumSeq::Fibbinary without consecutive 1-bits     68
Math::NumSeq::FibbinaryBitCount number of bits in each fibbinary number     68
Math::NumSeq::Fibonacci Fibonacci numbers     68
Math::NumSeq::FibonacciWord 0/1 related to Fibonacci numbers     68
Math::NumSeq::File sequence read from a file     68
Math::NumSeq::FractionDigits the digits of a fraction p/q     68
Math::NumSeq::GolayRudinShapiro parity of adjacent 11 bit pairs     68
Math::NumSeq::GolayRudinShapiroCumulative cumulative Golay/RudinShapiro sequence     68
Math::NumSeq::GoldbachCount number of representations as sum of primes P+Q     68
Math::NumSeq::GolombSequence sequence is its own run lengths, 1 upwards     68
Math::NumSeq::HafermanCarpet bits of the Haferman carpet     68
Math::NumSeq::HappyNumbers reaching 1 under repeated sum of squares of digits     68
Math::NumSeq::HappySteps number of sum of squares of digits iterations to reach a repeat     68
Math::NumSeq::HarshadNumbers numbers divisible by sum of digits     68
Math::NumSeq::HofstadterFigure sequence excludes its own first differences     68
Math::NumSeq::JugglerSteps steps in the juggler sqrt sequence     68
Math::NumSeq::KlarnerRado Klarner-Rado sequences     68
Math::NumSeq::Kolakoski sequence of 1s and 2s its own run lengths     68
Math::NumSeq::LemoineCount number of representations as P+2*Q for primes P,Q     68
Math::NumSeq::LiouvilleFunction Liouville function sequence     68
Math::NumSeq::LucasNumbers Lucas numbers     68
Math::NumSeq::LuckyNumbers sieved out multiples by the sequence itself     68
Math::NumSeq::MaxDigitCount maximum count of a given digit in any radix     68
Math::NumSeq::MephistoWaltz Mephisto waltz sequence     68
Math::NumSeq::MobiusFunction Mobius function sequence     68
Math::NumSeq::Modulo remainders modulo of a given number     68
Math::NumSeq::MoranNumbers numbers divided by sum of digits giving a prime     68
Math::NumSeq::Multiples multiples of a given number     68
Math::NumSeq::NumAronson numerical version of Aronson's sequence     68
Math::NumSeq::OEIS number sequence by OEIS A-number     68
Math::NumSeq::OEIS::Catalogue available A-numbers     68
Math::NumSeq::OEIS::Catalogue::Plugin pluggable catalogue extensions     68
Math::NumSeq::OEIS::Catalogue::Plugin::BuiltinTable     68
Math::NumSeq::OEIS::Catalogue::Plugin::FractionDigits     68
Math::NumSeq::OEIS::Catalogue::Plugin::ZZ_Files     68
Math::NumSeq::OEIS::File     68
Math::NumSeq::Odd odd integers     68
Math::NumSeq::Palindromes palindrome numbers like 15351     68
Math::NumSeq::Pell Pell numbers     68
Math::NumSeq::Perrin Perrin sequence     68
Math::NumSeq::PisanoPeriod cycle length of Fibonacci numbers mod i     68
Math::NumSeq::PisanoPeriodSteps Fibonacci frequency and Leonardo logarithm     68
Math::NumSeq::PolignacObstinate odd integers not prime+2^k     68
Math::NumSeq::Polygonal polygonal numbers, triangular, square, pentagonal, etc     68
Math::NumSeq::PowerFlip prime exponent flip     68
Math::NumSeq::PowerPart largest square root etc divisor     68
Math::NumSeq::Powerful numbers with certain prime powers     68
Math::NumSeq::PrimeFactorCount how many prime factors     68
Math::NumSeq::PrimeIndexOrder order of primeness by primes at prime indexes     68
Math::NumSeq::PrimeIndexPrimes primes with prime number indexes     68
Math::NumSeq::Primes prime numbers     68
Math::NumSeq::Primorials primorials 2*3*...*p[i]     68
Math::NumSeq::Pronic pronic numbers     68
Math::NumSeq::ProthNumbers Proth number sequence     68
Math::NumSeq::PythagoreanHypots hypotenuses of Pythagorean triples     68
Math::NumSeq::RadixConversion radix conversion     68
Math::NumSeq::RadixWithoutDigit integers without a given digit     68
Math::NumSeq::ReReplace sequence of repeated replacements     68
Math::NumSeq::ReRound sequence from repeated rounding up     68
Math::NumSeq::RepdigitAny numbers which are a repdigit in any radix     68
Math::NumSeq::RepdigitRadix radix in which i is a repdigit     68
Math::NumSeq::Repdigits repdigits 11, 22, 33, etc     68
Math::NumSeq::ReverseAdd steps of the reverse-add algorithm     68
Math::NumSeq::ReverseAddSteps steps of the reverse-add algorithm to reach palindrome     68
Math::NumSeq::Runs runs of consecutive integers     68
Math::NumSeq::SelfLengthCumulative cumulative digit length of own values     68
Math::NumSeq::SophieGermainPrimes Sophie Germain primes p and 2*p+1 prime     68
Math::NumSeq::SpiroFibonacci recurrence around a square spiral     68
Math::NumSeq::SqrtContinued continued fraction expansion of a square root     68
Math::NumSeq::SqrtContinuedPeriod period of the continued fraction for sqrt(i)     68
Math::NumSeq::SqrtDigits the digits of a square root     68
Math::NumSeq::SqrtEngel Engel expansion of a square root     68
Math::NumSeq::Squares perfect squares     68
Math::NumSeq::StarNumbers star numbers 6*i*(i-1)+1     68
Math::NumSeq::SternDiatomic Stern's diatomic sequence     68
Math::NumSeq::Tetrahedral tetrahedral numbers i*(i+1)*(i+2)/6     68
Math::NumSeq::Totient Euler's totient function, count of coprimes     68
Math::NumSeq::TotientCumulative cumulative totients     68
Math::NumSeq::TotientPerfect sum of repeated totients is N itself     68
Math::NumSeq::TotientSteps count of repeated totients to reach 1     68
Math::NumSeq::TotientStepsSum sum of repeated totients to reach 1     68
Math::NumSeq::Triangular triangular numbers     68
Math::NumSeq::Tribonacci Tribonacci numbers     68
Math::NumSeq::TwinPrimes twin primes     68
Math::NumSeq::UlamSequence integers uniquely the sum of two previous terms     68
Math::NumSeq::UndulatingNumbers numbers with alternating digits ABABAB...     68
Math::NumSeq::WoodallNumbers Woodall numbers i*2^i-1     68