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 A247275 #15 Sep 04 2025 21:26:17
%S A247275 163,409333,376040154163,1822896797857,9871431850597,13491637509487,
%T A247275 19802478368863
%N A247275 Primes p such that p + m^2 is prime for all m in {2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24}.
%C A247275 All terms are == {7, 13} mod 30.
%C A247275 Subsequence of A247273.
%o A247275 (PARI) forprime(p=1, oo, c=0; for(i=1, 12, if(ispseudoprime(p+(2*i)^2), c++)); if(c==12, print1(p, ", "))) \\ _Derek Orr_, Sep 11 2014
%Y A247275 Cf. A049492, A092120, A246842, A247269, A247273, A145741.
%K A247275 nonn,more,changed
%O A247275 1,1
%A A247275 _Zak Seidov_, Sep 11 2014