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 A361331 #28 Jun 27 2025 21:15:36 %S A361331 1,2,5,22,160,1770,23022,391390,7436428 %N A361331 Smallest index of n-th prime in A361330, or -1 if it does not appear. %C A361331 It appears that a(n) is growing as constant*primorial(n). - _Scott R. Shannon_, Mar 20 2023 %Y A361331 Cf. A002110 (primorials), A351495, A361330. %K A361331 nonn,more %O A361331 1,2 %A A361331 _Scott R. Shannon_ and _N. J. A. Sloane_, Mar 18 2023 %E A361331 a(7)-a(8) from _Winston de Greef_, Mar 18 2023 %E A361331 a(9) from _Scott R. Shannon_, Mar 20 2023