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 A104370 #24 Apr 15 2023 14:13:58
%S A104370 3,4,8,14,62,182,1372,2522,7562,38272,415802,1247402,16313472,
%T A104370 114107904,570257104,1161216000,21043021824,57893308852,1099944846002,
%U A104370 5530978026000,39437046917604,425165932107504,10235889009520064,29233062045242352,146100174169950002,1917846796927501440,5805987050510562240,39918123659008838880
%N A104370 Sum of divisors of A104365(n) = A104350(n) + 1.
%H A104370 Max Alekseyev, <a href="/A104370/b104370.txt">Table of n, a(n) for n = 1..158</a> (terms 1..76 terms from Amiram Eldar, terms 142..151 from Tyler Busby)
%H A104370 Reinhard Zumkeller, <a href="/A104350/a104350.txt">Products of largest prime factors of numbers <= n</a>
%F A104370 a(n) = A000203(A104365(n)).
%t A104370 a[n_] := DivisorSigma[1, 1 + Product[FactorInteger[k][[-1, 1]], {k, 1, n}]]; Array[a, 30] (* _Amiram Eldar_, Feb 12 2020 *)
%Y A104370 Cf. A000203, A104350, A104362, A104365, A104366, A104367, A104368, A104369, A104371, A104372.
%K A104370 nonn
%O A104370 1,1
%A A104370 _Reinhard Zumkeller_, Mar 06 2005