cp's OEIS Frontend

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.

A289159 Number of unlabeled connected simple graphs with n nodes of degree 4 or less, except trees and 4-regular graphs.

Table of values

n a(n)
1 0
2 0
3 1
4 4
5 17
6 72
7 342
8 1905
9 12156
10 89268
11 738911
12 6798758
13 68520038
14 748502910
15 8788173335
16 110193643134
17 1468070949946
18 20694573672876
19 307578336064984
20 4805384561143819
21 78708210390090371
22 1348365584611572634
23 24108682771962822336
24 449043803118075490633

List of values

[0, 0, 1, 4, 17, 72, 342, 1905, 12156, 89268, 738911, 6798758, 68520038, 748502910, 8788173335, 110193643134, 1468070949946, 20694573672876, 307578336064984, 4805384561143819, 78708210390090371, 1348365584611572634, 24108682771962822336, 449043803118075490633]

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

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