OFFSET
0,3
LINKS
Seiichi Manyama, Table of n, a(n) for n = 0..59
FORMULA
a(n) ~ A167010(n). - Vaclav Kotesovec, Oct 28 2019
MATHEMATICA
Table[Sum[(-1)^(n-i)*Binomial[n, i]*Sum[Binomial[i, j]^n, {j, 0, i}], {i, 0, n}], {n, 0, 15}] (* Vaclav Kotesovec, Oct 28 2019 *)
PROG
(PARI) {a(n) = sum(i=0, n, (-1)^(n-i)*binomial(n, i)*sum(j=0, i, binomial(i, j)^n))}
CROSSREFS
KEYWORD
nonn
AUTHOR
Seiichi Manyama, Oct 28 2019
STATUS
approved