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 A363456 #8 Apr 22 2025 21:55:07
%S A363456 1,2,6,27,150,900,5697,37226,246280,1648592,11204274
%N A363456 Positions of the terms of the Chernoff sequence (A006939) in A025487.
%C A363456 Indices of records in A363455.
%F A363456 A025487(a(n)) = A006939(n).
%F A363456 A363455(a(n)) = n.
%e A363456 A006939(0) = A025487(1) = 1, so a(0) = 1.
%e A363456 A006939(1) = A025487(2) = 2, so a(1) = 2.
%e A363456 A006939(2) = A025487(6) = 12, so a(2) = 6.
%t A363456 lps = Cases[Import["https://oeis.org/A025487/b025487.txt", "Table"], {_, _}][[;; , 2]];
%t A363456 cher = Table[Product[Prime[k]^(n - k + 1), {k, 1, n}], {n, 0, 8}]
%t A363456 Position[lps, #] & /@ cher // Flatten
%Y A363456 Cf. A006939, A025487, A363455.
%Y A363456 Similar sequences: A098718, A098719, A293635, A306802, A346043, A346407.
%K A363456 nonn,more
%O A363456 0,2
%A A363456 _Amiram Eldar_, Jun 03 2023