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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.

A369671 Expansion of g.f. A(x) satisfying Sum_{n=-oo..+oo} (x^n - 4*A(x))^n = theta_4(x).

Table of values

n a(n)
1 1
2 4
3 15
4 52
5 177
6 664
7 3038
8 16268
9 90660
10 490456
11 2541387
12 12819184
13 64665462
14 333763444
15 1776226471
16 9670530120
17 53128162973
18 291546645940
19 1592977754671
20 8685610041084
21 47462008167381
22 260789472093044
23 1442162566738036
24 8016343531922084
25 44697615509640615
26 249596790724248848

List of values

[1, 4, 15, 52, 177, 664, 3038, 16268, 90660, 490456, 2541387, 12819184, 64665462, 333763444, 1776226471, 9670530120, 53128162973, 291546645940, 1592977754671, 8685610041084, 47462008167381, 260789472093044, 1442162566738036, 8016343531922084, 44697615509640615, 249596790724248848]

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

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