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 A191151 #5 Mar 30 2012 18:57:30 %S A191151 1,3,7,11,15,19,27,31,43,55,75,79,91,107,123,127,143,163,171,219,223, %T A191151 235,271,299,315,319,363,367,379,399,427,487,491,507,511,651,655,667, %U A191151 683,703,811,875,891,895,911,939,943,955,1083,1087,1099,1135,1167,1195 %N A191151 Integers in (2+A191114)/3; contains A191114 as a proper subsequence. %C A191151 See A191114. %t A191151 (See A191114.) %Y A191151 Cf. A191113, A191114. %K A191151 nonn %O A191151 1,2 %A A191151 _Clark Kimberling_, May 27 2011