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 A338345 #9 Oct 28 2020 08:10:43 %S A338345 2,5,7,11,19,33,38,42,54,73,78,82,91,95,120,125,145,152,157,161,175, %T A338345 186,190,206,236,260,264,270,290,294,325,331,335,341,372,377,381,387, %U A338345 429,430,448,453,474,480,493,502,514,552,562,568,586,600,601,605,610,619,649,655,675 %N A338345 Numbers k such that A338338(k) is a prime. %C A338345 This is the sorted union of A338340, A338342, and A338344. %C A338345 Note that the primes in A338338 appear in their natural order. %H A338345 Rémy Sigrist, <a href="/A338345/b338345.txt">Table of n, a(n) for n = 1..10000</a> %H A338345 Rémy Sigrist, <a href="/A338345/a338345.gp.txt">PARI program for A338345</a> %o A338345 (PARI) See Links section. %Y A338345 Cf. A338338-A338349. %K A338345 nonn %O A338345 1,1 %A A338345 _N. J. A. Sloane_, Oct 27 2020