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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.

A382060 Number of rooted ordered trees with n nodes such that the degree of each node is less than or equal to its depth plus one.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 2
5 4
6 10
7 27
8 77
9 231
10 719
11 2302
12 7541
13 25177
14 85405
15 293635
16 1021272
17 3587674
18 12713796
19 45402113
20 163244197
21 590529759
22 2147915920
23 7851127319
24 28826079193
25 106268313333
26 393218951710
27 1459969448090
28 5437679646441
29 20311366912839
30 76072367645347
31 285623120079865
32 1074888308119285

List of values

[1, 1, 1, 1, 2, 4, 10, 27, 77, 231, 719, 2302, 7541, 25177, 85405, 293635, 1021272, 3587674, 12713796, 45402113, 163244197, 590529759, 2147915920, 7851127319, 28826079193, 106268313333, 393218951710, 1459969448090, 5437679646441, 20311366912839, 76072367645347, 285623120079865, 1074888308119285]

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

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