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.

A052848 Number of ordered set partitions with a designated element in each block and no block containing less than two elements.

Table of values

n a(n)
0 1
1 0
2 2
3 3
4 28
5 125
6 1146
7 8827
8 94200
9 1007001
10 12814390
11 172114151
12 2584755636
13 41436880069
14 721702509906
15 13397081295795
16 266105607506416
17 5605474012933169
18 125164378600050798
19 2948082261121889983
20 73122068527848758700
21 1903894649651935410141

List of values

[1, 0, 2, 3, 28, 125, 1146, 8827, 94200, 1007001, 12814390, 172114151, 2584755636, 41436880069, 721702509906, 13397081295795, 266105607506416, 5605474012933169, 125164378600050798, 2948082261121889983, 73122068527848758700, 1903894649651935410141]

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

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