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 A303616 #13 Apr 27 2018 10:31:20
%S A303616 1,2,20,276,4544,84496,1723960,37906608,887437120,21930970336,
%T A303616 568496401152,15384167213056,433012038646112,12640210696664768,
%U A303616 381804410640552576,11911194405763099520,383211218811649633792,12698182733530048241152
%N A303616 a(n) = [x^n] (1/15! * Sum_{k=0..n} (k+15)!*x^k)^(1/8).
%H A303616 Seiichi Manyama, <a href="/A303616/b303616.txt">Table of n, a(n) for n = 0..439</a>
%o A303616 (PARI) N=66; x='x+O('x^N); Vec((1/15!*sum(k=0, N, (k+15)!*x^k))^(1/8))
%Y A303616 Cf. A303613, A303614.
%K A303616 nonn
%O A303616 0,2
%A A303616 _Seiichi Manyama_, Apr 27 2018