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.

A246190 Number of endofunctions on [n] where the smallest cycle length equals 3.

Table of values

n a(n)
3 2
4 24
5 300
6 4360
7 74130
8 1456224
9 32562152
10 817596000
11 22785399450
12 697951656160
13 23306666102148
14 842567564800416
15 32781106696806650
16 1365579024023558400
17 60639189588419033040
18 2859165143013913590016
19 142651621238828972159538
20 7508140027468431374563200

List of values

[2, 24, 300, 4360, 74130, 1456224, 32562152, 817596000, 22785399450, 697951656160, 23306666102148, 842567564800416, 32781106696806650, 1365579024023558400, 60639189588419033040, 2859165143013913590016, 142651621238828972159538, 7508140027468431374563200]

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

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