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.

A285215 Expansion of Product_{k>=1} (1 - x^(4*k))^(4*k) / (1 - x^k)^k.

Table of values

n a(n)
0 1
1 1
2 3
3 6
4 9
5 20
6 36
7 62
8 106
9 184
10 302
11 503
12 829
13 1325
14 2119
15 3367
16 5282
17 8227
18 12740
19 19550
20 29849
21 45300
22 68325
23 102495
24 152998
25 227249
26 336005
27 494597
28 724875
29 1058213
30 1538860
31 2229370
32 3218304
33 4630015
34 6638728
35 9488894
36 13520995
37 19208916
38 27211430

List of values

[1, 1, 3, 6, 9, 20, 36, 62, 106, 184, 302, 503, 829, 1325, 2119, 3367, 5282, 8227, 12740, 19550, 29849, 45300, 68325, 102495, 152998, 227249, 336005, 494597, 724875, 1058213, 1538860, 2229370, 3218304, 4630015, 6638728, 9488894, 13520995, 19208916, 27211430]