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.

A291114 Number of endofunctions on [n] such that the LCM of their cycle lengths equals eight.

Table of values

n a(n)
0 0
1 0
2 0
3 0
4 0
5 0
6 0
7 0
8 5040
9 408240
10 22680000
11 1105196400
12 51492672000
13 2386304640720
14 112267476921600
15 5422473658602000
16 270574193944454400
17 13996921541118516000
18 752006571801610245120
19 41994571006059763946400
20 2437848824911611890688000

List of values

[0, 0, 0, 0, 0, 0, 0, 0, 5040, 408240, 22680000, 1105196400, 51492672000, 2386304640720, 112267476921600, 5422473658602000, 270574193944454400, 13996921541118516000, 752006571801610245120, 41994571006059763946400, 2437848824911611890688000]

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

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