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.

A259784 Number T(n,k) of permutations p of [n] with no fixed points where the maximal displacement of an element equals k; triangle T(n,k), n>=0, 0<=k<=n, read by rows.

Table of values

n a(n)
0 1
1 0
2 0
3 0
4 1
5 0
6 0
7 0
8 2
9 0
10 0
11 1
12 3
13 5
14 0
15 0
16 0
17 6
18 18
19 20
20 0
21 0
22 1
23 12
24 44
25 111
26 97
27 0
28 0
29 0
30 24
31 116
32 396
33 744
34 574
35 0
36 0
37 1
38 44
39 331
40 1285
41 3628
42 5571
43 3973
44 0
45 0
46 0
47 84
48 932
49 4312
50 15038
51 34948
52 46662
53 31520
54 0
55 0
56 1
57 159
58 2532
59 15437
60 59963
61 181193
62 359724
63 434127
64 281825
65 0

List of values

[1, 0, 0, 0, 1, 0, 0, 0, 2, 0, 0, 1, 3, 5, 0, 0, 0, 6, 18, 20, 0, 0, 1, 12, 44, 111, 97, 0, 0, 0, 24, 116, 396, 744, 574, 0, 0, 1, 44, 331, 1285, 3628, 5571, 3973, 0, 0, 0, 84, 932, 4312, 15038, 34948, 46662, 31520, 0, 0, 1, 159, 2532, 15437, 59963, 181193, 359724, 434127, 281825, 0]