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.

A380767 Number of sequences in which the games of a single-elimination tournament with n teams can be played if arbitrarily many arenas are available and the tournament bracket is chosen to be the bracket with the largest such number of sequences.

Table of values

n a(n)
2 1
3 1
4 3
5 5
6 19
7 63
8 365
9 1199
10 7177
11 36209
12 295355
13 1652085
14 15193115
15 114570449
16 1323338487
17 8732267521
18 93577466255
19 822198823101
20 10952623368043

List of values

[1, 1, 3, 5, 19, 63, 365, 1199, 7177, 36209, 295355, 1652085, 15193115, 114570449, 1323338487, 8732267521, 93577466255, 822198823101, 10952623368043]