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.

A361448 Number of connected 3-regular multigraphs on 2n unlabeled nodes rooted at an oriented edge (or loop) whose removal does not disconnect the graph, loops allowed.

Table of values

n a(n)
0 1
1 2
2 10
3 66
4 511
5 4536
6 45519
7 512661
8 6436571
9 89505875
10 1369509795
11 22908806774
12 416408493351
13 8178599551905
14 172690849144538
15 3902128758180500
16 93970611848528998
17 2402929936231885063
18 65029668312580777779
19 1856984518220396165657
20 55803367549204703645086

List of values

[1, 2, 10, 66, 511, 4536, 45519, 512661, 6436571, 89505875, 1369509795, 22908806774, 416408493351, 8178599551905, 172690849144538, 3902128758180500, 93970611848528998, 2402929936231885063, 65029668312580777779, 1856984518220396165657, 55803367549204703645086]

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

Content is available under The OEIS End-User License Agreement.