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 A190776 #4 Mar 30 2012 18:57:29 %S A190776 3,10,13,17,20,27,34,37,44,51,54,58,61,68,75,78,85,92,95,99,102,109, %T A190776 116,119,126,133,136,143,150,153,157,160,167,174,177,184,191,194,198, %U A190776 201,208,215,218,225,232,235,242,249,252,256,259,266,273,276,283,290,293,297,300,307,314,317,324,331,334,338,341,348,351,355,358 %N A190776 Positions of 0 in A190775. %C A190776 See A190775. %t A190776 (See A190775.) %Y A190776 Cf. A190775. %K A190776 nonn %O A190776 1,1 %A A190776 _Clark Kimberling_, May 19 2011