cp's OEIS Frontend

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.

A054727 Number of forests of rooted trees with n nodes on a circle without crossing edges.

Table of values

n a(n)
1 1
2 2
3 7
4 33
5 181
6 1083
7 6854
8 45111
9 305629
10 2117283
11 14929212
12 106790500
13 773035602
14 5652275723
15 41683912721
16 309691336359
17 2315772552485
18 17415395593371
19 131632335068744
20 999423449413828
21 7618960581522348
22 58295017292748756
23 447517868947619432
24 3445923223190363608

List of values

[1, 2, 7, 33, 181, 1083, 6854, 45111, 305629, 2117283, 14929212, 106790500, 773035602, 5652275723, 41683912721, 309691336359, 2315772552485, 17415395593371, 131632335068744, 999423449413828, 7618960581522348, 58295017292748756, 447517868947619432, 3445923223190363608]

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

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