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 A165146 #10 Aug 25 2013 05:15:26 %S A165146 1,1,2,5,14,42,136,459,1594,5645,20280,73659 %N A165146 Erroneous duplicate version of A181496. %C A165146 Previous name was: Number of polynomials P(x,y) of degree n with coefficients only 0 or 1 and such that P(x,1-x) = 1. %K A165146 dead %O A165146 0,3 %A A165146 _Hagen von Eitzen_, Sep 05 2009