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 A356519 #21 Oct 11 2022 05:14:43 %S A356519 3,45,2835,42525,1403325,273648375 %N A356519 Denominators in approximations to the Aurifeuillian factors of p^p +- 1. %C A356519 a(1) = 3 = 4! / 2^3 %C A356519 a(2) = 3^2 * 5 = 6! / 2^4 %C A356519 a(3) = 3^4 * 5 * 7 = 8! / 2^7 * 3^2 %C A356519 a(4) = 3^5 * 5^2 * 7 = 10! / 2^8 * 3 %C A356519 a(5) = 3^6 * 5^2 * 7 * 11 = 12! / 2^10 * 3 %Y A356519 Cf. A356518 (numerators), A352711, A352732, A352400, A352401. %K A356519 frac,nonn,more %O A356519 1,1 %A A356519 _Patrick A. Thomas_, Aug 10 2022