OFFSET
0,24
LINKS
Robert Israel, Table of n, a(n) for n = 0..10000
FORMULA
a(n) = -(1/n)*Sum_{k=1..n} A284103(k)*a(n-k), a(0) = 1.
G.f. is the QPochhammer symbol (x^4;x^5)_infinity. - Robert Israel, Mar 27 2017
MAPLE
S:= series(mul(1-x^(5*k+4), k=0..200), x, 101):
seq(coeff(S, x, j), j=0..100); # Robert Israel, Mar 27 2017
MATHEMATICA
CoefficientList[Series[Product[1 - x^(5k + 4), {k, 0, 100}], {x, 0, 100}], x] (* Indranil Ghosh, Mar 25 2017 *)
PROG
(PARI) Vec(prod(k=0, 100, 1 - x^(5*k + 4)) + O(x^101)) \\ Indranil Ghosh, Mar 25 2017
CROSSREFS
KEYWORD
sign
AUTHOR
Seiichi Manyama, Mar 25 2017
STATUS
approved