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 A035350 #9 Dec 19 2015 09:44:53 %S A035350 1,1,2,5,15,48,164,583,2142,8062,30950,120651,476418,1901311,7656763, %T A035350 31074151,126963466,521820340,2155911512,8948711597,37299355151, %U A035350 156054201936,655134261795,2758885471920,11651193009013 %N A035350 "BIK" (reversible, indistinct, unlabeled) transform of A000237. %H A035350 Christian G. Bower, <a href="/A035350/b035350.txt">Table of n, a(n) for n=0..500</a> %H A035350 C. G. Bower, <a href="/transforms2.html">Transforms (2)</a> %Y A035350 Cf. A000083, A000237, A000314, A035082, A035349-A035357. %K A035350 nonn %O A035350 0,3 %A A035350 _Christian G. Bower_, Nov 15 1998