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 A316346 #10 Jun 12 2019 16:28:43 %S A316346 4,9,8,25,2,49,16,81,10,121,12,169,14,15,32,289,6,361,4,7,22,529,72, %T A316346 625,26,243,28,841,30,961,64,3,34,35,36,1369,38,39,40,1681,6,1849,484, %U A316346 45,46,2209,48,2401,50,51,52,2809,18,55,56,57,58,3481,60,3721,62 %N A316346 a(n) = A316297(n+1)/A316297(n). %e A316346 a(3) = A316297(4)/A316297(3) = 288/36 = 8. %t A316346 #[[2]]/#[[1]]&/@Partition[Array[#! Denominator[HarmonicNumber[#]]&,70], 2,1] (* _Harvey P. Dale_, Jun 12 2019 *) %Y A316346 Cf. A316297. %K A316346 nonn %O A316346 1,1 %A A316346 _Matthew Campbell_, Jun 29 2018