cp's OEIS Frontend

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.

A321240 Expansion of Product_{i>=1, j>=1, k>=1, l>=1} (1 + x^(i*j*k*l))/(1 - x^(i*j*k*l)).

Table of values

n a(n)
0 1
1 2
2 10
3 26
4 86
5 210
6 594
7 1394
8 3530
9 8006
10 18842
11 41258
12 92190
13 195714
14 419538
15 867050
16 1797568
17 3625758
18 7311382
19 14431294
20 28416514
21 55010142
22 106101558
23 201814518
24 382213566
25 715473554
26 1333083950
27 2459265058
28 4515151234
29 8218572030
30 14888270366
31 26766878302

List of values

[1, 2, 10, 26, 86, 210, 594, 1394, 3530, 8006, 18842, 41258, 92190, 195714, 419538, 867050, 1797568, 3625758, 7311382, 14431294, 28416514, 55010142, 106101558, 201814518, 382213566, 715473554, 1333083950, 2459265058, 4515151234, 8218572030, 14888270366, 26766878302]