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 A135717 #8 Jun 24 2019 11:26:27 %S A135717 3,3,3,3,3,3,3,3,3,3,4,3,3,4,4,4,4,3,4,3,4,4,3,4,3,3,3,4,3,3,4,3,3,3, %T A135717 4,4,4,4,4,5,4,4,4,3,4,5,4,3,3,3,4,3,4,3,3,4,4,4,4,3,4,4,4,3,4,4,3,4, %U A135717 3,3,4,4,4,4,4,3,3,4,3,3,4,3,4,4,3,4,3,4,3,3,3,4,3,4,4,4,4,4,4,3,4,4,4,4,5 %N A135717 a(n) = number of prime divisors of Carmichael numbers A002997(n). %C A135717 Number of prime divisors is always >= 3. For the least Carmichael number with n prime factors see A006931. %H A135717 Amiram Eldar, <a href="/A135717/b135717.txt">Table of n, a(n) for n = 1..10000</a> %F A135717 a(n) = A001221(A002997(n)). - _M. F. Hasler_, Apr 14 2015 %Y A135717 Cf. A002997, A006931. %K A135717 nonn %O A135717 1,1 %A A135717 _Artur Jasinski_, Nov 25 2007