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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.

A273660 Number of forests of labeled rooted trees of height at most 1, with n labels, ten of which are used for root nodes and any root may contain >= 1 labels.

Table of values

n a(n)
10 115975
11 6188545
12 188526162
13 4324211606
14 83234980829
15 1422697691415
16 22336690031656
17 329296289467288
18 4628083121855622
19 62687799439000450
20 824939949711312292
21 10611095747493196956
22 134039591449028959694
23 1668916223557034160170
24 20541239452587941670792

List of values

[115975, 6188545, 188526162, 4324211606, 83234980829, 1422697691415, 22336690031656, 329296289467288, 4628083121855622, 62687799439000450, 824939949711312292, 10611095747493196956, 134039591449028959694, 1668916223557034160170, 20541239452587941670792]

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

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