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 A303614 #12 Apr 27 2018 10:31:52
%S A303614 1,2,12,100,1016,11904,155896,2237264,34713216,576780384,10190672448,
%T A303614 190437245568,3748465227360,77458688700864,1675826429735808,
%U A303614 37874833476394368,892480151181131520,21889831041022132224,557997984025699216128
%N A303614 a(n) = [x^n] (1/5040 * Sum_{k=0..n} (k+7)!*x^k)^(1/4).
%H A303614 Seiichi Manyama, <a href="/A303614/b303614.txt">Table of n, a(n) for n = 0..444</a>
%o A303614 (PARI) N=66; x='x+O('x^N); Vec((1/7!*sum(k=0, N, (k+7)!*x^k))^(1/4))
%Y A303614 Cf. A049388, A303569.
%K A303614 nonn
%O A303614 0,2
%A A303614 _Seiichi Manyama_, Apr 27 2018