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 A317637 #43 Feb 22 2022 03:37:12
%S A317637 0,8,30,72,140,240,378,560,792,1080,1430,1848,2340,2912,3570,4320,
%T A317637 5168,6120,7182,8360,9660,11088,12650,14352,16200,18200,20358,22680,
%U A317637 25172,27840,30690,33728,36960,40392,44030,47880,51948,56240,60762,65520,70520,75768,81270,87032
%N A317637 a(n) = n*(n+1)*(n+3).
%H A317637 Amiram Eldar, <a href="/A317637/b317637.txt">Table of n, a(n) for n = 0..10000</a>
%H A317637 <a href="/index/Rec#order_04">Index entries for linear recurrences with constant coefficients</a>, signature (4,-6,4,-1).
%F A317637 a(n) = 2*A077414(n+1).
%F A317637 Sum_{n>=1} 1/a(n) = 7/36. - _Amiram Eldar_, Oct 07 2020
%F A317637 Sum_{n>=1} (-1)^(n+1)/a(n) = 2*log(2)/3 - 13/36. - _Amiram Eldar_, Feb 22 2022
%t A317637 Table[n*(n + 1)*(n + 3), {n, 0, 43}] (* _Giovanni Resta_, Aug 10 2018 *)
%Y A317637 Cf. A077414.
%K A317637 nonn,easy
%O A317637 0,2
%A A317637 _Renzo Remotti_, Aug 02 2018