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 A369777 #11 Feb 01 2024 00:26:36 %S A369777 2,1223,1487,4007,4547,7823,9839,10259,11483,11807,11909,13259,13967, %T A369777 14207,15629,15803,16139,16889,18287,19583,23039,23879,24359,25349, %U A369777 29339,30707,32027,34883,36929,38747,39113,39119,42787,43223,44207,46829,47189,49003,49019,49157,53093,56267,56909 %N A369777 Primes that do not divide any 3-Carmichael numbers. %C A369777 An odd prime p is a term if and only if A290481(A033270(p)) = 0. %H A369777 Max Alekseyev, <a href="/A369777/b369777.txt">Table of n, a(n) for n = 1..496</a> %H A369777 <a href="/index/Ca#Carmichael">Index entries for sequences related to Carmichael numbers</a> %Y A369777 Subsequence of A051663. %Y A369777 Cf. A087788, A290481, A290484 %K A369777 nonn %O A369777 1,1 %A A369777 _Max Alekseyev_, Jan 31 2024