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 A178050 #14 Aug 18 2013 09:43:10 %S A178050 17,26261,90017,138401,176417,562517,788561,2022101,2683061,4743701, %T A178050 5336117,9622421,11614481,13927841,21344417,21734261,22184117, %U A178050 38192417,59629301,64448801,68558417,79923617,82301201,89302517,90098081,91814741,95648417 %N A178050 n=x^2+17, n and n+2 are prime. %e A178050 17=0^2+17, and 19 are prime. %e A178050 26261=162^2+17 and 26263 are prime. %o A178050 (PARI) isok(n) = isprime(n) && isprime(n+2) && issquare(n-17); \\ _Michel Marcus_, Aug 18 2013 %Y A178050 Subsequence of A228244. %K A178050 nonn %O A178050 1,1 %A A178050 _John L. Drost_, Dec 16 2010 %E A178050 a(26)-a(27) from _Michel Marcus_, Aug 18 2013