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 A023674 #3 Mar 30 2012 18:55:53 %S A023674 0,2,5,8,14,23,34,47,64,81,107,132,161,196,231,270,319,370,419,476, %T A023674 538,599,670,743,818,901,992,1077,1170,1273,1370,1487,1606,1717,1840, %U A023674 1974,2115,2252,2401,2544,2697,2860,3023,3184,3367,3540,3723 %N A023674 Convolution of A014306 (starting 0,0,1,1,0,1,1,1,1,...) and primes. %K A023674 nonn %O A023674 1,2 %A A023674 _Clark Kimberling_