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 A287924 #14 Jul 23 2021 02:08:48
%S A287924 2,3,4,6,7,12,15,19,21,25,27,33,38,39,44,51,59,62,63,65,66,69,74,90,
%T A287924 93,96,101,106,108,111,112,123,132,138,143,144,147,153,162,163,166,
%U A287924 168,181,187,188,203,219,224,229,241,243,255,258,259,269,273,300
%N A287924 Numbers k such that A287922(k) is a prime.
%C A287924 Corresponding primes are in A045637.
%t A287924 Select[Table[n, {n, 300}], PrimeQ[Prime[#]^2 + 4] &]
%Y A287924 Cf. A287922, A045637.
%K A287924 nonn
%O A287924 1,1
%A A287924 _XU Pingya_, Jun 02 2017