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 A171936 #5 Jun 15 2019 21:42:32 %S A171936 0,0,1,0,2,0,2,2,5,2,4,0,2,4,1,0,4,6,2,2,6,1,4,0,16,4,1,8,6,6,2,4,6,1, %T A171936 1,0,6,3,1,10,4,2,2,12,1,7,4,0,24,5,5,2,6,12,4,2,2,1,6,0,2,4,11,0,3, %U A171936 10,6,5,4,4,4,12,2,5,7,1,3,8,6,32,65,5,4,12,3,1,1,10,6,6,4,16,2,1,1,6,8,6,1 %N A171936 Backwards van Eck transform of A000005. %H A171936 N. J. A. Sloane, <a href="/transforms.txt">Transforms</a> %Y A171936 Cf. A171937. %K A171936 nonn %O A171936 1,5 %A A171936 _N. J. A. Sloane_, Oct 24 2010