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.

A355519 Number of valid brackets in an n-round tournament.

Table of values

n a(n)
0 1
1 2
2 5
3 19
4 123
5 1457
6 32924
7 1452015
8 126487061
9 21898598245
10 7558601003617
11 5209629536999054
12 7175576970776253311
13 19758953061561609438197
14 108796404018098314291373545
15 1197986411771818785507163602609
16 26381385902615283298043180284145933

List of values

[1, 2, 5, 19, 123, 1457, 32924, 1452015, 126487061, 21898598245, 7558601003617, 5209629536999054, 7175576970776253311, 19758953061561609438197, 108796404018098314291373545, 1197986411771818785507163602609, 26381385902615283298043180284145933]

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

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