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.

A297926 Number of set partitions of [2n] in which the size of the first block is n.

Table of values

n a(n)
0 1
1 1
2 6
3 50
4 525
5 6552
6 93786
7 1504932
8 26640900
9 514083570
10 10713538550
11 239342496120
12 5697111804566
13 143759365731100
14 3829115870472600
15 107260549881604200
16 3149703964487098665
17 96686987797052290440
18 3094969650442399156350
19 103079905957566679518300

List of values

[1, 1, 6, 50, 525, 6552, 93786, 1504932, 26640900, 514083570, 10713538550, 239342496120, 5697111804566, 143759365731100, 3829115870472600, 107260549881604200, 3149703964487098665, 96686987797052290440, 3094969650442399156350, 103079905957566679518300]

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

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