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 A050393 #21 Apr 23 2020 20:45:13
%S A050393 1,-1,0,3,-7,3,31,-105,101,419,-1971,2923,5800,-40388,81147,64075,
%T A050393 -854408,2204543,-56096,-18070916,58866158,-38939227,-371701743,
%U A050393 1544696638,-1870286829,-7166094999,39743193694,-68677654555
%N A050393 Reversion of partitions into distinct parts A000009.
%H A050393 Vincenzo Librandi, <a href="/A050393/b050393.txt">Table of n, a(n) for n = 1..200</a>
%H A050393 N. J. A. Sloane, <a href="/transforms.txt">Transforms</a>
%H A050393 <a href="/index/Res#revert">Index entries for reversions of series</a>
%F A050393 G.f. A(x) satisfies: A(x) = -1 + (1 + x) * Product_{k>=2} 1/(1 + A(x)^k). - _Ilya Gutkovskiy_, Apr 23 2020
%t A050393 InverseSeries[QPochhammer[-1, x]/2 + O[x]^20][[3]] (* _Vladimir Reshetnikov_, Sep 22 2016 *)
%Y A050393 Cf. A000009, A007312, A050394.
%K A050393 sign
%O A050393 1,4
%A A050393 _Christian G. Bower_, Nov 15 1999