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 A138687 #9 Nov 04 2013 17:13:04 %S A138687 28,34,55,58,76,88,100,106,118,133,145,148,160,166,178,184,202,208, %T A138687 214,232,238,244,253,259,262,265,268,286,298,301,310,328,340,343,352, %U A138687 358,361,364,370,385,388,391,403,412,418,430,442,445,448,454,475,478,490 %N A138687 Composite n with no prime of the form 2n + p^2 for any prime p. %F A138687 Composite members of A138685. %Y A138687 Cf. A138479, A138685, A138686. %K A138687 nonn %O A138687 1,1 %A A138687 _Artur Jasinski_, Mar 26 2008 %E A138687 Typo corrected by _Michel Marcus_, Nov 04 2013