OFFSET
0,11
LINKS
Seiichi Manyama, Table of n, a(n) for n = 0..529
FORMULA
a(0) = 1; a(n) = Sum_{k=0..floor((n-5)/2)} binomial(n,2*k+5) * a(n-2*k-5).
E.g.f.: 1 / ( 1 + x + x^3/6 - sinh(x) ).
PROG
(PARI) my(N=30, x='x+O('x^N)); Vec(serlaplace(1/(1+x+x^3/6-sinh(x))))
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Seiichi Manyama, Sep 23 2023
STATUS
approved