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.

A350454 Number T(n,k) of endofunctions on [n] with exactly k fixed points, none of which are isolated; triangle T(n,k), n >= 0, 0 <= k <= n/2, read by rows.

Table of values

n a(n)
0 1
1 0
2 1
3 2
4 8
5 9
6 81
7 76
8 12
9 1024
10 875
11 180
12 15625
13 12606
14 2910
15 120
16 279936
17 217217
18 53550
19 3780
20 5764801
21 4348856
22 1118936
23 102480
24 1680
25 134217728
26 99111735
27 26280072
28 2817360
29 90720
30 3486784401
31 2532027610
32 686569050
33 81864720
34 3729600
35 30240

List of values

[1, 0, 1, 2, 8, 9, 81, 76, 12, 1024, 875, 180, 15625, 12606, 2910, 120, 279936, 217217, 53550, 3780, 5764801, 4348856, 1118936, 102480, 1680, 134217728, 99111735, 26280072, 2817360, 90720, 3486784401, 2532027610, 686569050, 81864720, 3729600, 30240]