Created
May 9, 2019 16:41
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(Partial) References to 176 OEIS Sequences from http://golf.horse/oeis/
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# 001478 -n from -1 | |
# 001489 -n from 0 | |
# 000004 0 | |
# 004526 floor(n/2) | |
# 002620 floor(n^2/4) | |
# 001057 interleaved 0 -1 -2... & 1 2 3... | |
# 000035 0 1 0 1... | |
# 010060 parity from 0 | |
# 000014 series-reduced trees | |
# 001221 # distinct primes dividing n | |
# 000001 # groups of order n | |
# 074206 # ordered factorizations of n | |
# 104725 # complementing systems of subsets of {0..n-1} | |
# 001190 # unlabeled binary rooted trees w/ n endpoints | |
# 001222 # prime divisors w/ multiplicity | |
# 000120 popcount from 0 | |
# 002487 [0, 1, even -> a(n/2); odd -> a((n-1)/2) + a((n+1)/2)] | |
# 000045 fibonacci 0 1 1 2... | |
# 000081 # unlabeled rooted trees w/ n nodes | |
# 001065 sum of divisors < itself | |
# 002530 cont frac of sqrt(3) | |
# 001045 [0, 1, a(n-1) + 2a(n-2)] | |
# 000311 # total partitions of n | |
# 002275 repunit | |
# 000583 n^4 | |
# 005811 # ones in gray code of n | |
# 000720 # primes <= n | |
# 001477 0 1 2 3... | |
# 002113 palindromes in base 10 | |
# 001481 x^2 + y^2 | |
# 000129 [0, 1, 2a(n-1) + a(n-2)] | |
# 003136 x^2 + xy + y^2 | |
# 000217 triangular | |
# 000215 2^n-1 | |
# 001906 fibonacci(2n) | |
# 000292 tetrahedral | |
# 000290 squares | |
# 000326 pentagonal | |
# 000330 square pyramidal | |
# 000578 n^3 | |
# 005843 0 2 4 6... | |
# 002378 oblong | |
# 001969 popcount odd | |
# 008683 mobius | |
# 027641 bernoulli numerator | |
# 008275 stirling numbers of first kind, s(0,0)=1; s(n,0)=s(0,k)=0; s(n,k)=s(n-1,k-1)-(n-1)*s(n-1,k) | |
# 000594 ramanujan tau | |
# 010054 0^n | |
# 049310 chebyshev's polynomial coeffs | |
# 000166 derangements | |
# 002654 # ways to write n as x^2 or x^2 + y^2 (order matters) | |
# 000161 # partitions as x^2 + y^2 | |
# 000012 1 1 1 1... | |
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# 000111 up/down | |
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# 000040 primes | |
# 000043 mersenne exponents | |
# 000058 [2, a(n-1)^2 - a(n) + 1] | |
# 000609 # threshold functions of ~n vars | |
# 001113 e | |
# 005588 # free binary trees w/ height n | |
# 000796 pi | |
# 001097 twin primes | |
# 002808 composites | |
# 001358 semiprimes | |
# 000396 perfect numbers | |
# 001034 orders of non-cyclic simple groups |
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