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 A032043 #11 Jun 21 2018 17:02:49
%S A032043 1,2,2,6,6,10,34,38,62,90,306,334,574,794,1226,3390,4014,6370,9130,
%T A032043 13598,18470,48114,55290,88966,123238,184178,245714,358710,771990,
%U A032043 937210,1427698,1992662,2882894,3895626,5533314,7318270,14935246
%N A032043 "BFK" (reversible, size, unlabeled) transform of 2,2,2,2...
%H A032043 Andrew Howroyd, <a href="/A032043/b032043.txt">Table of n, a(n) for n = 0..1000</a>
%H A032043 C. G. Bower, <a href="/transforms2.html">Transforms (2)</a>
%o A032043 (PARI) seq(n)={apply(p->subst(serlaplace(p + polcoeff(p,1)), y, 1)/2, Vec(y-1+prod(k=1, n, 1 + 2*x^k*y + O(x*x^n))))} \\ _Andrew Howroyd_, Jun 21 2018
%Y A032043 a(n) = (A032005(n) + 2)/2.
%K A032043 nonn
%O A032043 0,2
%A A032043 _Christian G. Bower_
%E A032043 a(0)=1 prepended by _Andrew Howroyd_, Jun 21 2018