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 A192538 #4 Mar 30 2012 18:57:35 %S A192538 1,3,17,27,545,563,867,1395,1433,1577,2187,580793,585363,592433, %T A192538 593507,620195,624945,632267,633377,891075,921153,950907,1481427, %U A192538 1489217,1500795,1502513,1624913,1649195 %N A192538 (A192537)/2. %C A192538 See A192537. %t A192538 (See A192537.) %Y A192538 Cf. A192476, A192537. %K A192538 nonn %O A192538 1,2 %A A192538 _Clark Kimberling_, Jul 04 2011