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 A241540 #7 Apr 27 2014 09:38:28 %S A241540 1,2,4,30,217,49749629143526 %N A241540 Indices of primes p in A182514, i.e., a(n) = primepi(p) = A000720(A182514(n)). %C A241540 a(6) = A214935(33) = A000720(A205827(33)). %Y A241540 Cf. A053302, A053976, A073861, A111870, A111943, A182514. %Y A241540 See also A214935(n)=A000720(A205827(n)), A005669(n) = A000720(A002386(n)). %K A241540 nonn,hard,more %O A241540 1,2 %A A241540 _M. F. Hasler_, Apr 25 2014