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 A143585 #10 Sep 07 2024 08:53:16 %S A143585 2,28,530,7793,97255,1175775,13804822,157523559,1768264167, %T A143585 19589296501,214795459468 %N A143585 a(n) is the prime index of A146214(n). %F A143585 a(n) = primepi(A146214(n)) = A000720(A146214(n)). %Y A143585 Cf. A000720, A146214. %K A143585 nonn,more %O A143585 0,1 %A A143585 _Zak Seidov_, Oct 30 2008 %E A143585 Offset corrected by _Amiram Eldar_, Sep 05 2024