OFFSET
0,13
LINKS
Andrew Howroyd, Table of n, a(n) for n = 0..1000
FORMULA
G.f.: (Sum_{k>=0} x^(13*k)/(Product_{j=1..k} 1 - x^(5*j))^3)/(Product_{j>=0} 1 - x^(5*j+2)). - Andrew Howroyd, Sep 16 2019
PROG
(PARI) seq(n)={Vec(sum(k=0, n\13, x^(13*k)/prod(j=1, k, 1 - x^(5*j) + O(x*x^n))^4)/prod(j=0, n\5, 1 - x^(5*j+2) + O(x*x^n)))} \\ Andrew Howroyd, Sep 16 2019
CROSSREFS
KEYWORD
nonn
AUTHOR
STATUS
approved