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 A104361 #15 Oct 03 2022 17:09:15
%S A104361 1,2,2,2,2,2,4,2,2,2,4,4,4,4,2,4,8,8,2,8,8,8,2,4,16,16,4,4,32,16,4,8,
%T A104361 4,8,2,8,16,8,32,8,16,16,32,2,8,16,4,4,4,8,2,4,8,4,8,2,16,2,8,16,64,
%U A104361 16,16,4,64,2,32,16,16,2,4,32,128,16,32,8,16,16,32,16,32,4,16,16,32,8,8,8,4,32,4,32,16,128,4,32,8,4
%N A104361 Number of divisors of A104357(n) = A104350(n) - 1.
%H A104361 Max Alekseyev, <a href="/A104361/b104361.txt">Table of n, a(n) for n = 2..145</a>
%H A104361 Reinhard Zumkeller, <a href="/A104350/a104350.txt">Products of largest prime factors of numbers <= n</a>
%F A104361 a(n) = A000005(A104357(n)).
%t A104361 a[n_] := DivisorSigma[0, -1 + Product[FactorInteger[k][[-1, 1]], {k, 1, n}]]; Array[a, 50, 2] (* _Amiram Eldar_, Feb 12 2020 *)
%Y A104361 Cf. A000005, A064145, A104350, A104357, A104358, A104359, A104360, A104362, A104363, A104364, A104369.
%K A104361 nonn
%O A104361 2,2
%A A104361 _Reinhard Zumkeller_, Mar 06 2005
%E A104361 a(51)-a(74) from _Amiram Eldar_, Feb 12 2020
%E A104361 Terms a(75) onward from _Max Alekseyev_, Oct 03 2022