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.

A246214 Number of endofunctions on [n] where the largest cycle length equals 4.

Table of values

n a(n)
4 6
5 150
6 3240
7 72030
8 1719060
9 44520840
10 1252364400
11 38167414560
12 1255558958280
13 44404434904830
14 1681726757430720
15 67953913291104750
16 2919509551303952880
17 132943540577100047760
18 6397727538671302783680
19 324511272091351156939200
20 17306903935107005765263200

List of values

[6, 150, 3240, 72030, 1719060, 44520840, 1252364400, 38167414560, 1255558958280, 44404434904830, 1681726757430720, 67953913291104750, 2919509551303952880, 132943540577100047760, 6397727538671302783680, 324511272091351156939200, 17306903935107005765263200]

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

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