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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.

A368937 Expansion of (1/x) * Series_Reversion( x * (1-x) * (1-x+x^5) ).

Table of values

n a(n)
0 1
1 2
2 7
3 30
4 143
5 727
6 3861
7 21165
8 118845
9 680064
10 3951291
11 23247874
12 138229486
13 829292780
14 5013767772
15 30516496017
16 186837457296
17 1149894814718
18 7110026033305
19 44146396259805
20 275139524189497
21 1720647439298395
22 10793938343564655
23 67905034046934225

List of values

[1, 2, 7, 30, 143, 727, 3861, 21165, 118845, 680064, 3951291, 23247874, 138229486, 829292780, 5013767772, 30516496017, 186837457296, 1149894814718, 7110026033305, 44146396259805, 275139524189497, 1720647439298395, 10793938343564655, 67905034046934225]

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

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