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 A363833 #20 Oct 21 2023 15:00:31
%S A363833 0,1,1,3,1,3,2,5,2,3,1,7,1,4,4,7,2,5,2,7,4,4,2,10,3,4,4,8,1,9,3,9,3,5,
%T A363833 4,12,3,4,4,11,1,9,2,9,7,5,2,14,4,6,5,8,1,8,5,11,5,3,1,17,3,6,7,13,6,
%U A363833 8,2,10,4,9,3,17,2,7,10,10,6,10,4,15,7,5,2
%N A363833 Number of prime factors of A000129(n) (Pell numbers) (counted with multiplicity).
%H A363833 Amiram Eldar, <a href="/A363833/b363833.txt">Table of n, a(n) for n = 1..630</a> (calculated using Jon E. Schoenfield's a-file at A000129)
%F A363833 a(n) = bigomega(Pell(n)) = A001222(A000129(n)).
%e A363833 a(8)=5 because Pell(8)=408 has prime factors {2, 2, 2, 3, 17}.
%t A363833 PrimeOmega[LinearRecurrence[{2,1},{1,2},83]] (* _Stefano Spezia_, Oct 19 2023 *)
%Y A363833 Cf. A000129, A001222, A272040, A363829, A363831, A364818.
%K A363833 nonn
%O A363833 1,4
%A A363833 _Tyler Busby_, Oct 19 2023