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 A352401 #53 Jul 23 2022 19:24:25 %S A352401 7,911,407353,870542161121,2498077661567473,63472256064447557254913, %T A352401 54382651771205224279713471565249817, %U A352401 767102704711961850109296220485687497279,6066304600323886604542912453739225327712511596287519 %N A352401 The right Aurifeuillian factor of p^p + 1 for primes p congruent to 3 (mod 4). %C A352401 For prime factorizations of p^p + 1 see A125136. %H A352401 Patrick A. Thomas, <a href="/A352401/b352401.txt">Table of n, a(n) for n = 1..65</a> %H A352401 Calculators, <a href="http://myfactorcollection.mooo.com:8090/calculators.html">Aurifeuillian LMs</a> %e A352401 870542161121 is the larger Aurifeuillian factor of 19^19 + 1, and 19 is the 4th term of A002145, so a(4) = 870542161121. %Y A352401 Cf. A002145, A125136, A230379, A352711, A352732, A352400. %K A352401 nonn %O A352401 1,1 %A A352401 _Patrick A. Thomas_, Jun 08 2022