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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.

A292300 Number of connected graphs with at least 2 and at most n nodes.

Table of values

n a(n)
2 1
3 3
4 9
5 30
6 142
7 995
8 12112
9 273192
10 11989763
11 1018690328
12 165078520804
13 50500986390023
14 29053988449238084
15 31426435131210480044
16 64000986548356386656321
17 245935832668632382906184889
18 1787577661081567721273106761469
19 24637809007060949223043923866443113

List of values

[1, 3, 9, 30, 142, 995, 12112, 273192, 11989763, 1018690328, 165078520804, 50500986390023, 29053988449238084, 31426435131210480044, 64000986548356386656321, 245935832668632382906184889, 1787577661081567721273106761469, 24637809007060949223043923866443113]

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

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