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 A366712 #7 Jan 04 2024 13:45:51 %S A366712 1,1,2,3,2,2,3,3,3,5,3,2,4,4,4,7,2,3,5,4,6,8,6,4,6,6,5,10,3,3,5,3,2,9, %T A366712 4,5,7,4,5,10,4,5,6,5,4,12,3,5,5,5,8,9,5,5,10,7,9,10,7,6,10,5,6,14,5, %U A366712 8,11,4,5,12,9,3,10,5,8,17,5,6,9,4,6,15,3 %N A366712 Number of distinct prime divisors of 12^n + 1. %H A366712 Max Alekseyev, <a href="/A366712/b366712.txt">Table of n, a(n) for n = 0..306</a> %F A366712 a(n) = omega(12^n+1) = A001221(A178248(n)). %o A366712 (PARI) for(n = 0, 100, print1(omega(12^n + 1), ", ")) %Y A366712 Cf. A178248, A001221, A046799, A119704, A366713, A366714, A366707, A366686. %K A366712 nonn %O A366712 0,3 %A A366712 _Sean A. Irvine_, Oct 17 2023