This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A022914 #14 Jul 02 2025 16:01:55
%S A022914 1,2,12,1120,50450400,1387660381886338560,
%T A022914 58833957894412548628347941194431580569600,
%U A022914 54468560860672704568758301042326371229883670125439070950586847311164532855256159027200000
%N A022914 Multinomial coefficients(TOP, BOTTOM), where TOP = 2^n, BOTTOM = ( C(n,0) C(n,1) C(n,2) ... C(n,n) ).
%H A022914 Alois P. Heinz, <a href="/A022914/b022914.txt">Table of n, a(n) for n = 0..10</a>
%p A022914 with(combinat):
%p A022914 a:= n-> multinomial(2^n, seq(binomial(n, i), i=0..n)):
%p A022914 seq(a(n), n=0..8); # _Alois P. Heinz_, Sep 24 2013
%t A022914 Table[(2^n)!/Product[Binomial[n, k]!, {k, 0, n}], {n, 0, 8}] (* _Vaclav Kotesovec_, Nov 24 2023 *)
%Y A022914 Cf. A051459.
%K A022914 nonn
%O A022914 0,2
%A A022914 _Clark Kimberling_
%E A022914 More terms from _James Sellers_, May 02 2000