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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.

A027999 Expansion of Product(1+q^m)^(m(m-1)/2); m=1..inf.

Table of values

n a(n)
0 1
1 0
2 1
3 3
4 6
5 13
6 24
7 49
8 91
9 181
10 334
11 632
12 1163
13 2138
14 3880
15 7006
16 12531
17 22279
18 39369
19 69078
20 120597
21 209282
22 361405
23 620829
24 1061687
25 1807014
26 3062642
27 5168784
28 8688820
29 14549659
30 24274226
31 40353748
32 66854518
33 110391391
34 181695436
35 298129605
36 487706902

List of values

[1, 0, 1, 3, 6, 13, 24, 49, 91, 181, 334, 632, 1163, 2138, 3880, 7006, 12531, 22279, 39369, 69078, 120597, 209282, 361405, 620829, 1061687, 1807014, 3062642, 5168784, 8688820, 14549659, 24274226, 40353748, 66854518, 110391391, 181695436, 298129605, 487706902]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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