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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.

A307700 Number of evolutionary duplication-loss-histories with n leaves of the caterpillar species tree with 5 leaves.

Table of values

n a(n)
1 5
2 69
3 1230
4 24843
5 541315
6 12426996
7 296546600
8 7292489761
9 183702242491
10 4719659859582
11 123261298705663
12 3263950145153931
13 87452457544863592
14 2366980142343757033
15 64628573978046899555
16 1778185743733577832862
17 49254755849062502247446
18 1372455474283175885070422

List of values

[5, 69, 1230, 24843, 541315, 12426996, 296546600, 7292489761, 183702242491, 4719659859582, 123261298705663, 3263950145153931, 87452457544863592, 2366980142343757033, 64628573978046899555, 1778185743733577832862, 49254755849062502247446, 1372455474283175885070422]

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

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