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 A308535 #5 Jun 06 2019 21:59:36
%S A308535 1,2,22,608,31764,2695992,338441112,58961602464,13614906576528,
%T A308535 4024831155397536,1482492491866434912,665729215100873644800,
%U A308535 358022910151079384324928,227174478580352888344068480,167941710127005880795828894080,143087068385495604780364250426880
%N A308535 Expansion of e.g.f. 1/(1 - x)^log(1 + x) (even powers only).
%F A308535 a(n) = (2*n)! * [x^(2*n)] 1/(1 - x)^log(1 + x).
%t A308535 nmax = 15; Table[(CoefficientList[Series[1/(1 - x)^Log[1 + x], {x, 0, 2 nmax}], x] Range[0, 2 nmax]!)[[n]], {n, 1, 2 nmax + 1, 2}]
%Y A308535 Cf. A008405, A009199, A087761, A308346.
%K A308535 nonn
%O A308535 0,2
%A A308535 _Ilya Gutkovskiy_, Jun 06 2019