OFFSET
0,11
FORMULA
a(0) = 1; a(n) = Sum_{k=0..floor((n-5)/4)} binomial(n,4*k+5) * a(n-4*k-5).
E.g.f.: 1 / ( 1 + x - (sinh(x) + sin(x))/2 ).
PROG
(PARI) my(N=40, x='x+O('x^N)); Vec(serlaplace(1/(1+x-(sinh(x)+sin(x))/2)))
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Seiichi Manyama, Sep 23 2023
STATUS
approved