OFFSET
0,3
LINKS
Seiichi Manyama, Table of n, a(n) for n = 0..898
FORMULA
a(n) = Sum_{k=0..n} binomial(5*k+1,k) * binomial(k,n-k)/(5*k+1) = Sum_{k=0..n} binomial(k,n-k) * A002294(k).
PROG
(PARI) a(n) = sum(k=0, n, binomial(k, n-k)*binomial(5*k, k)/(4*k+1));
CROSSREFS
KEYWORD
nonn
AUTHOR
Seiichi Manyama, Aug 25 2023
STATUS
approved