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.

A285926 Number of ordered set partitions of [2n] into n blocks such that equal-sized blocks are ordered with increasing least elements.

Table of values

n a(n)
0 1
1 1
2 11
3 420
4 17129
5 1049895
6 97141022
7 10742461730
8 1370094506209
9 207877406991111
10 36104901766271975
11 7033373902938469086
12 1531762189401458287506
13 368890302956243012167470
14 97283928918541409263666020
15 27895730515878936009534815250

List of values

[1, 1, 11, 420, 17129, 1049895, 97141022, 10742461730, 1370094506209, 207877406991111, 36104901766271975, 7033373902938469086, 1531762189401458287506, 368890302956243012167470, 97283928918541409263666020, 27895730515878936009534815250]

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

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