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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.

A332960 Number of labeled forests with n trees and 2n nodes and with the largest tree having exactly 3 nodes.

Table of values

n a(n)
1 0
2 12
3 180
4 5040
5 151200
6 6029100
7 276215940
8 14983768800
9 919653134400
10 63694663332300
11 4888759865289300
12 412920835111184400
13 38015644799992860000
14 3791220682538296507500
15 407033985027273005902500
16 46814497435454120812440000
17 5742194963898519585098640000
18 748255970051952172869045487500

List of values

[0, 12, 180, 5040, 151200, 6029100, 276215940, 14983768800, 919653134400, 63694663332300, 4888759865289300, 412920835111184400, 38015644799992860000, 3791220682538296507500, 407033985027273005902500, 46814497435454120812440000, 5742194963898519585098640000, 748255970051952172869045487500]

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

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