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.

A246285 Number of endofunctions on [n] with cycles of four distinct lengths.

Table of values

n a(n)
10 151200
11 18794160
12 1524489120
13 104403293280
14 6629862919680
15 408263722546680
16 24979292241583680
17 1540245109352826240
18 96546169418188875840
19 6185447845988110316640
20 406427517408935067292800
21 27447169190924624967665280
22 1907535125221297935659493120

List of values

[151200, 18794160, 1524489120, 104403293280, 6629862919680, 408263722546680, 24979292241583680, 1540245109352826240, 96546169418188875840, 6185447845988110316640, 406427517408935067292800, 27447169190924624967665280, 1907535125221297935659493120]

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

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