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 A122413 #6 Jun 10 2018 20:26:03 %S A122413 3,4,5,10,17,25,31,48,190,218,328,369,740,1185,1664,2226,2227,3386, %T A122413 3387,4060,5950,14358,30804,31546,33610,104072,118506,325853,597312, %U A122413 1319946,2324141,4140010,4258996,5911615,8040879,17567978,23163299,25203781 %N A122413 Indices of primes occurring in A031134. %H A122413 Jon E. Schoenfield, <a href="/A122413/b122413.txt">Table of n, a(n) for n = 1..52</a> %F A122413 a(n) = pi(A031134(n)). %e A122413 a(4)=10 because the 4th term of A031134 is the 10th prime number. %Y A122413 Cf. A031131, A031132, A031133, A031134, A122412. %K A122413 nonn %O A122413 1,1 %A A122413 _Jon E. Schoenfield_, Sep 02 2006