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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.

A058836 Number of labeled n-node 4-valent graphs containing a loop.

Table of values

n a(n)
0 0
1 0
2 0
3 0
4 0
5 0
6 60
7 1890
8 77280
9 3966480
10 251067600
11 19204305120
12 1747829270880
13 186823771322760
14 23188769670126060
15 3309132464435848050
16 538177754986005214080
17 98975242794632514448320

List of values

[0, 0, 0, 0, 0, 0, 60, 1890, 77280, 3966480, 251067600, 19204305120, 1747829270880, 186823771322760, 23188769670126060, 3309132464435848050, 538177754986005214080, 98975242794632514448320]

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

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