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 A065436 #3 May 11 2007 03:00:00 %S A065436 1,1,2,3,5,7,11,17,23,37,59,89,139,227,359,577,929,1499,2423,3919,6337 %N A065436 Duplicate of A055500. %K A065436 dead %O A065436 1,3