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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.

A385125 Number of rooted ordered trees with n non-root nodes all labeled with numbers greater than 0 such that the labels of all groups of sibling nodes cover the same initial interval.

Table of values

n a(n)
0 1
1 1
2 4
3 17
4 96
5 642
6 5238
7 50745
8 568976
9 7256750
10 103622742
11 1634819518
12 28208152974
13 528060735100
14 10654676857578

List of values

[1, 1, 4, 17, 96, 642, 5238, 50745, 568976, 7256750, 103622742, 1634819518, 28208152974, 528060735100, 10654676857578]

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

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