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.

A341243 Expansion of (-1 + Product_{k>=1} 1 / (1 + (-x)^k))^4.

Table of values

n a(n)
4 1
5 0
6 4
7 4
8 10
9 16
10 26
11 44
12 63
13 100
14 144
15 212
16 297
17 420
18 584
19 796
20 1081
21 1452
22 1940
23 2556
24 3355
25 4372
26 5668
27 7288
28 9327
29 11892
30 15076
31 19012
32 23884
33 29904
34 37276
35 46284
36 57276
37 70680
38 86918
39 106528
40 130220
41 158784
42 193054
43 234076
44 283178
45 341824
46 411616
47 494512
48 592933

List of values

[1, 0, 4, 4, 10, 16, 26, 44, 63, 100, 144, 212, 297, 420, 584, 796, 1081, 1452, 1940, 2556, 3355, 4372, 5668, 7288, 9327, 11892, 15076, 19012, 23884, 29904, 37276, 46284, 57276, 70680, 86918, 106528, 130220, 158784, 193054, 234076, 283178, 341824, 411616, 494512, 592933]