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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.

A282349 Expansion of (Sum_{k>=0} x^(k*(2*k^2+1)/3))^7.

Table of values

n a(n)
0 1
1 7
2 21
3 35
4 35
5 21
6 14
7 43
8 105
9 140
10 105
11 42
12 28
13 105
14 210
15 210
16 105
17 21
18 35
19 147
20 252
21 245
22 175
23 105
24 77
25 154
26 315
27 455
28 420
29 210
30 63
31 147
32 441
33 630
34 420
35 105
36 7
37 147
38 441
39 525
40 350
41 210
42 106
43 126
44 322
45 567
46 735
47 560
48 210
49 84
50 301
51 840
52 1050
53 630
54 210
55 49
56 315
57 875
58 980
59 630
60 245
61 35
62 245
63 707
64 1050
65 980
66 560
67 210
68 168

List of values

[1, 7, 21, 35, 35, 21, 14, 43, 105, 140, 105, 42, 28, 105, 210, 210, 105, 21, 35, 147, 252, 245, 175, 105, 77, 154, 315, 455, 420, 210, 63, 147, 441, 630, 420, 105, 7, 147, 441, 525, 350, 210, 106, 126, 322, 567, 735, 560, 210, 84, 301, 840, 1050, 630, 210, 49, 315, 875, 980, 630, 245, 35, 245, 707, 1050, 980, 560, 210, 168]