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.

A243098 Number T(n,k) of endofunctions on [n] with all cycles of length k; triangle T(n,k), n>=0, 0<=k<=n, read by rows.

Table of values

n a(n)
0 1
1 0
2 1
3 0
4 3
5 1
6 0
7 16
8 6
9 2
10 0
11 125
12 51
13 24
14 6
15 0
16 1296
17 560
18 300
19 120
20 24
21 0
22 16807
23 7575
24 4360
25 2160
26 720
27 120
28 0
29 262144
30 122052
31 73710
32 41160
33 17640
34 5040
35 720
36 0
37 4782969
38 2285353
39 1430016
40 861420
41 430080
42 161280
43 40320
44 5040

List of values

[1, 0, 1, 0, 3, 1, 0, 16, 6, 2, 0, 125, 51, 24, 6, 0, 1296, 560, 300, 120, 24, 0, 16807, 7575, 4360, 2160, 720, 120, 0, 262144, 122052, 73710, 41160, 17640, 5040, 720, 0, 4782969, 2285353, 1430016, 861420, 430080, 161280, 40320, 5040]