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 A366713 #7 Jan 04 2024 15:27:04 %S A366713 1,1,2,3,2,2,3,3,3,5,4,2,4,5,4,7,2,3,5,4,6,9,6,4,6,6,5,10,3,3,6,3,2,9, %T A366713 4,5,7,4,5,11,4,5,6,5,4,12,3,5,5,5,10,9,5,5,10,7,9,11,8,6,10,5,6,15,5, %U A366713 9,11,4,5,12,10,3,10,5,8,17,5,6,9,4,6,15 %N A366713 Number of prime factors of 12^n + 1 (counted with multiplicity). %H A366713 Max Alekseyev, <a href="/A366713/b366713.txt">Table of n, a(n) for n = 0..306</a> %F A366713 a(n) = bigomega(12^n+1) = A001222(A178248(n)). %t A366713 PrimeOmega[12^Range[70]+1] %o A366713 (PARI) a(n)=bigomega(12^n+1) %Y A366713 Cf. A178248, A001222, A054992, A057934, A057935, A057936, A057937, A057938, A057939, A057940, A057941, A366712, A366714, A366715, A366716, A366719, A366720, A366708, A366687. %K A366713 nonn %O A366713 0,3 %A A366713 _Sean A. Irvine_, Oct 17 2023