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.

A372595 Irregular triangle read by rows, where the n-th row gives the number of steps in the hydra game (the version described in A372478) when the initial hydra is each of the A000108(n) ordered trees with n edges (ordered by lexicographic order of their corresponding Dyck words as in A063171).

Table of values

n a(n)
0 0
1 1
2 2
3 3
4 3
5 4
6 5
7 13
8 37
9 4
10 5
11 6
12 14
13 38
14 7
15 9
16 37
17 22539988369405

List of values

[0, 1, 2, 3, 3, 4, 5, 13, 37, 4, 5, 6, 14, 38, 7, 9, 37, 22539988369405]

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

Content is available under The OEIS End-User License Agreement.