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 A190841 #8 Mar 30 2012 18:57:29 %S A190841 1,2,3,5,8,9,12,14,15,17,21,23,26,27,29,33,39,41,44,45,50,51,53,57,65, %T A190841 66,68,75,77,80,81,86,87,89,98,99,101,102,105,113,120,122,129,131,134, %U A190841 135,147,149,152,153,158,159,161,170,171,173,177,183,194,195,197,201,203,209,225 %N A190841 Integers in (1+A190803)/2. %C A190841 See Comments at A190803, which is a proper subsequence of A190841. %t A190841 (See A190803.) %Y A190841 Cf. A190803, A190842. %K A190841 nonn %O A190841 1,2 %A A190841 _Clark Kimberling_, May 21 2011