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.

A244455 Number of unlabeled rooted trees with n nodes such that the minimal outdegree of inner nodes equals 1.

Table of values

n a(n)
2 1
3 1
4 3
5 7
6 17
7 42
8 105
9 267
10 684
11 1775
12 4639
13 12238
14 32491
15 86859
16 233496
17 631082
18 1713613
19 4673455
20 12795426
21 35159212
22 96927479
23 268021520
24 743188706
25 2066071045
26 5757360011
27 16079027344
28 44997313684
29 126166307275
30 354384737204
31 997083779801
32 2809751278062

List of values

[1, 1, 3, 7, 17, 42, 105, 267, 684, 1775, 4639, 12238, 32491, 86859, 233496, 631082, 1713613, 4673455, 12795426, 35159212, 96927479, 268021520, 743188706, 2066071045, 5757360011, 16079027344, 44997313684, 126166307275, 354384737204, 997083779801, 2809751278062]

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

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