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 A152476 #10 Nov 21 2015 09:04:13
%S A152476 1,0,2,14,246,8374,560950,74018118,19314751526,10004153405174,
%T A152476 10313935405968726,21205201672407811750,87047013055579706265862,
%U A152476 713958711370466820900197334,11705348549229324549016264190006
%N A152476 Inverse binomial transform of A005329.
%H A152476 G. C. Greubel, <a href="/A152476/b152476.txt">Table of n, a(n) for n = 0..50</a>
%F A152476 a(n) ~ c * 2^(n*(n+1)/2), where c = A048651 = 0.2887880950866... . - _Vaclav Kotesovec_, Nov 21 2015
%t A152476 Table[Sum[(-1)^(n+k) Binomial[n, k] QFactorial[k, 2], {k, 0, n}], {n, 0, 15}] (* _Vladimir Reshetnikov_, Nov 20 2015 *)
%Y A152476 Cf. A075272.
%K A152476 easy,nonn
%O A152476 0,3
%A A152476 _Vladeta Jovovic_, Dec 05 2008