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 A192436 #17 Mar 30 2012 18:52:45 %S A192436 5,11,73,139,269,1048613,67108913,134217779,4294967357,549755813963, %T A192436 9223372036854775931,2417851639229258349412511, %U A192436 316912650057057350374175801537,2596148429267413814265248164610267 %N A192436 Primes of the form 2^n+2*n-3. %C A192436 Generated by n = 2, 3, 6, 7, 8, 20, 26, 27, 32, 39, 63, 81, 98, 111,... %Y A192436 Cf. A163115. %K A192436 nonn %O A192436 1,1 %A A192436 _Juri-Stepan Gerasimov_, Jul 03 2011