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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.

A101313 Number of painted forests - exactly one of its trees is painted - on labeled vertex set [n].

Table of values

n a(n)
1 1
2 3
3 12
4 68
5 525
6 5262
7 65674
8 987408
9 17426565
10 353759300
11 8127640224
12 208600774032
13 5917247520457
14 183872561612040
15 6212370268252950
16 226762373954676608
17 8893485959056048521
18 372980176625914811568
19 16656844860594186642100
20 789196576594282265505600

List of values

[1, 3, 12, 68, 525, 5262, 65674, 987408, 17426565, 353759300, 8127640224, 208600774032, 5917247520457, 183872561612040, 6212370268252950, 226762373954676608, 8893485959056048521, 372980176625914811568, 16656844860594186642100, 789196576594282265505600]

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

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