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 A374931 #6 Jul 24 2024 09:21:47
%S A374931 1,9,44,156,450,1121,2508,5139,9867,17831,30888,51117,82212,127458,
%T A374931 193809,285702,415701,588797,826803,1133352,1545986,2062203,2744811,
%U A374931 3579155,4665375,5964543,7638983,9600392,12104136,14992496,18642996,22787829,28006341,33830697,41125050,49183310,59202486
%N A374931 Expansion of Sum_{1<=i<=j<=k<=l} q^(i+j+k+l)/( (1-q^i)*(1-q^j)*(1-q^k)*(1-q^l) )^2.
%H A374931 Tewodros Amdeberhan, George E. Andrews and Roberto Tauraso, <a href="https://arxiv.org/abs/2309.03191">Extensions of MacMahon's sums of divisors</a>, arXiv:2309.03191v1 [math.CO], Sep 06 2023.
%Y A374931 Cf. A374929, A374930.
%Y A374931 Cf. A365664.
%K A374931 nonn
%O A374931 4,2
%A A374931 _Seiichi Manyama_, Jul 24 2024