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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.

A321566 Expansion of Product_{1 <= i_1 <= i_2 <= i_3 <= i_4} 1/(1 - x^(i_1*i_2*i_3*i_4)).

Table of values

n a(n)
0 1
1 1
2 2
3 3
4 6
5 8
6 14
7 19
8 32
9 44
10 67
11 91
12 139
13 186
14 269
15 362
16 518
17 687
18 960
19 1267
20 1747
21 2294
22 3106
23 4052
24 5449
25 7063
26 9365
27 12092
28 15914
29 20422
30 26639
31 34029
32 44090
33 56075
34 72108
35 91303
36 116802
37 147264
38 187210
39 235182
40 297562
41 372346
42 468777
43 584553
44 732803
45 910744

List of values

[1, 1, 2, 3, 6, 8, 14, 19, 32, 44, 67, 91, 139, 186, 269, 362, 518, 687, 960, 1267, 1747, 2294, 3106, 4052, 5449, 7063, 9365, 12092, 15914, 20422, 26639, 34029, 44090, 56075, 72108, 91303, 116802, 147264, 187210, 235182, 297562, 372346, 468777, 584553, 732803, 910744]

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