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.

A273659 Number of forests of labeled rooted trees of height at most 1, with n labels, nine of which are used for root nodes and any root may contain >= 1 labels.

Table of values

n a(n)
9 21147
10 948280
11 24564100
12 483787480
13 8061693640
14 120120836836
15 1653807555400
16 21489660580960
17 267385444371760
18 3218688299529560
19 37768351403903120
20 434451231603262640
21 4920317819371507280
22 55047363589643246360
23 609969295304994614000
24 6708182596868603027936

List of values

[21147, 948280, 24564100, 483787480, 8061693640, 120120836836, 1653807555400, 21489660580960, 267385444371760, 3218688299529560, 37768351403903120, 434451231603262640, 4920317819371507280, 55047363589643246360, 609969295304994614000, 6708182596868603027936]

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

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