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 A215431 #20 Sep 04 2012 06:57:09 %S A215431 31,37,65,191,255,287,359,786,836,1178,1229,1503,1601,1609,2093,2103, %T A215431 2254,2307,2471,2934,2978,3215,3220,3363,3402,3705,3724,3892,3894, %U A215431 3976,4094,4478,4490,4535,4566,4683,4749,4752,4789,4918,5064,6061,6162,6167 %N A215431 Numbers n such that n^128+(n+1)^128 is a prime. %H A215431 Vincenzo Librandi, <a href="/A215431/b215431.txt">Table of n, a(n) for n = 1..250</a> %t A215431 Select[Range[7000], PrimeQ[#^128 + (# + 1)^128] &] %Y A215431 Cf. A027861, A153504, A154535, A155211, A174156, A174157, A215432. %K A215431 nonn,easy %O A215431 1,1 %A A215431 _Vincenzo Librandi_, Aug 31 2012