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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.

A302112 Number of forests with 2n nodes and n labeled trees. Also number of forests with exactly n edges on 2n labeled nodes.

Table of values

n a(n)
0 1
1 1
2 15
3 435
4 18865
5 1092105
6 79170399
7 6899167275
8 702495121185
9 81857181636945
10 10742799174110575
11 1568060617808784099
12 251983549987815976785
13 44207398164005846558425
14 8407483858740005340602175
15 1722961754698440157865926875
16 378507890849998531093971032385

List of values

[1, 1, 15, 435, 18865, 1092105, 79170399, 6899167275, 702495121185, 81857181636945, 10742799174110575, 1568060617808784099, 251983549987815976785, 44207398164005846558425, 8407483858740005340602175, 1722961754698440157865926875, 378507890849998531093971032385]

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

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