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 A032300 #8 Sep 11 2018 17:03:27
%S A032300 1,1,3,14,27,194,1280,4087,17899,177410,1829004,6191393,39601452,
%T A032300 221669681,3187238613,46728961697,184114626107,1217996265362,
%U A032300 8854410188516,68536459359829,1305896806285888,26706311366603507,116616474061307483,879466953545771963
%N A032300 "EFJ" (unordered, size, labeled) transform of 1,3,5,7,...
%H A032300 Andrew Howroyd, <a href="/A032300/b032300.txt">Table of n, a(n) for n = 0..200</a>
%H A032300 C. G. Bower, <a href="/transforms2.html">Transforms (2)</a>
%F A032300 E.g.f.: Product_{k > 0} (1 + (2*k-1)*x^k/k!). - _Andrew Howroyd_, Sep 11 2018
%o A032300 (PARI) seq(n)={Vec(serlaplace(prod(k=1, n, 1 + (2*k-1)*x^k/k! + O(x*x^n))))} \\ _Andrew Howroyd_, Sep 11 2018
%K A032300 nonn
%O A032300 0,3
%A A032300 _Christian G. Bower_
%E A032300 a(0)=1 prepended and terms a(22) and beyond from _Andrew Howroyd_, Sep 11 2018