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 A116358 #4 Mar 30 2012 18:50:54 %S A116358 1,2,3,4,5,7,8,9,10,11,13,14,16,17,19,20,22,23,25,26,28,29,31,32,34, %T A116358 37,38,40,43,44,46,49,52,55,58,61,64,67,73,79 %N A116358 Numbers that cannot be written as sum of products of two successive primes. %C A116358 A116357(a(n)) = 0; complement of A116359. %K A116358 nonn,fini,full %O A116358 1,2 %A A116358 _Reinhard Zumkeller_, Feb 12 2006