OFFSET
0,2
LINKS
Alois P. Heinz, Table of n, a(n) for n = 0..10
MAPLE
with(combinat):
a:= n-> multinomial(2^n, seq(binomial(n, i), i=0..n)):
seq(a(n), n=0..8); # Alois P. Heinz, Sep 24 2013
MATHEMATICA
Table[(2^n)!/Product[Binomial[n, k]!, {k, 0, n}], {n, 0, 8}] (* Vaclav Kotesovec, Nov 24 2023 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
EXTENSIONS
More terms from James A. Sellers, May 02 2000
STATUS
approved