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 A232010 #17 Dec 20 2021 02:37:41 %S A232010 5,11,17,21,23,26,29,31,35,41,45,47,51,53,56,59,61,65,68,71,73,77,81, %T A232010 83,86,87,89,91,95,101,107,110,111,113,115,116,117,119,121,125,129, %U A232010 131,134,137,139,141,143,146,149,151,152,155,157,161,165,167,171,173,176 %N A232010 Numbers k such that p^2 + k is composite for all prime p. %C A232010 Primes from this sequence are in A067775. %C A232010 Complement of A232012. %F A232010 A232009(a(n)) = 0. %e A232010 7 is not in the sequence because 2^2 + 7 = 11 (prime). %Y A232010 Cf. A232009, A067775, A232012, A023200. %K A232010 nonn %O A232010 1,1 %A A232010 _Jaroslav Krizek_, Nov 20 2013