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.

A122404 Number of preferential arrangements of n labeled elements where the exchange of elements among the levels is restricted to levels of different occupation numbers.

Table of values

n a(n)
0 0
1 1
2 2
3 8
4 25
5 102
6 619
7 3012
8 17210
9 100980
10 796797
11 5350138
12 41054864
13 313424464
14 2545451783
15 23433207732
16 206742504343
17 1964483722070
18 18932563920493
19 189888762507928
20 1933963299246176
21 21213419239538308
22 230266075236104673
23 2633055815662413522

List of values

[0, 1, 2, 8, 25, 102, 619, 3012, 17210, 100980, 796797, 5350138, 41054864, 313424464, 2545451783, 23433207732, 206742504343, 1964483722070, 18932563920493, 189888762507928, 1933963299246176, 21213419239538308, 230266075236104673, 2633055815662413522]

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

Content is available under The OEIS End-User License Agreement.