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 A244670 #5 Sep 08 2022 08:46:08 %S A244670 1,3,392,11250,131769,1568294784,501126,119439360000000, %T A244670 6566468639062500,39226324511250000,15780962,162778775259375000, %U A244670 2966827112704,22417760034702144000000000000,1801703513076518898,30261936128,3531477204506250000,5876813016539072244 %N A244670 Product of divisors of n / sum of divisors of n for n such that product of divisors of n is divisible by sum of divisors of n. %F A244670 a(n) = A007955(A145551(n)) / A000203(A145551(n)) = A244668(A145551(n)). %e A244670 For n = 4; A145551(4) = 30; A244668(30) = 11250. %o A244670 (Magma)[Numerator((&*[d: d in Divisors(n)]) / (&+[d: d in Divisors(n)])): n in [1..10000] | Denominator((&*[d: d in Divisors(n)]) / (&+[d: d in Divisors(n)])) eq 1] %Y A244670 Cf. A007955, A000203, A145551, A244668, A244669. %K A244670 nonn %O A244670 1,2 %A A244670 _Jaroslav Krizek_, Jul 04 2014