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.

A070946 Number of permutations on n letters that have only cycles of length 5 or less.

Table of values

n a(n)
0 1
1 1
2 2
3 6
4 24
5 120
6 600
7 3480
8 22800
9 164880
10 1285920
11 10516320
12 92931840
13 877374720
14 8762014080
15 91819440000
16 1005716908800
17 11584953158400
18 139521689740800
19 1748830512960000
20 22750446292531200
21 306931140411955200
22 4296645083802470400
23 62213458150660147200

List of values

[1, 1, 2, 6, 24, 120, 600, 3480, 22800, 164880, 1285920, 10516320, 92931840, 877374720, 8762014080, 91819440000, 1005716908800, 11584953158400, 139521689740800, 1748830512960000, 22750446292531200, 306931140411955200, 4296645083802470400, 62213458150660147200]

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

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