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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.

A360788 Expansion of Sum_{k>=0} x^k / (1 - (k*x)^3)^(k+1).

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 3
5 25
6 109
7 324
8 1135
9 8803
10 64189
11 337854
12 1707319
13 13421410
14 121248893
15 894378619
16 6082868725
17 53046554917
18 543432115477
19 4989423130739
20 42565774604131
21 421544374075072
22 4781440892689533
23 51342685464272591
24 522295380717090265

List of values

[1, 1, 1, 1, 3, 25, 109, 324, 1135, 8803, 64189, 337854, 1707319, 13421410, 121248893, 894378619, 6082868725, 53046554917, 543432115477, 4989423130739, 42565774604131, 421544374075072, 4781440892689533, 51342685464272591, 522295380717090265]