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 A277321 #20 Nov 30 2016 13:01:19 %S A277321 2,2,3,3,5,5,17,5,7,5,7,11,257,7,11,19,13,7,19,7,17,67,131,65537,13,7, %T A277321 37,67,11,131,13,41,11,13,37,73,4099,13,137,11,19,37,32771,4099,23,17, %U A277321 65539,11,2053,19,262147,521,37,32771,1033,23,97,13,65539,11,11,71,262147,43,23,13,17,11,193,11,41,268435459,2053,71 %N A277321 Primes in A048675, in the order of appearance and with duplicates. %C A277321 Each prime number occurs in this sequence, but only for a finite number of times. %H A277321 Antti Karttunen, <a href="/A277321/b277321.txt">Table of n, a(n) for n = 1..4994</a> %H A277321 Hans Havermann, <a href="http://chesswanks.com/num/(a277319,a277321).txt">70000 terms with their associated A277319 numbers</a> %F A277321 a(n) = A048675(A277319(n)). %Y A277321 Cf. A000040, A048675, A277319. %K A277321 nonn %O A277321 1,1 %A A277321 _Antti Karttunen_, Oct 11 2016