A299789 - cp's OEIS frontend

A299789 Number T(n,k) of permutations p of [n] such that min_{j=1..n} |p(j)-j| = k; triangle T(n,k), n >= 0, 0 <= k <= floor(n/2), read by rows.

n	a(n)
0	0
1	1
2	1
3	1
4	4
5	2
6	15
7	8
8	1
9	76
10	40
11	4
12	455
13	236
14	28
15	1
16	3186
17	1648
18	198
19	8
20	25487
21	13125
22	1596
23	111
24	1
25	229384
26	117794
27	14534
28	1152
29	16
30	2293839
31	1175224
32	146372
33	12929
34	435
35	1
36	25232230
37	12903874
38	1621282
39	152430
40	6952
41	32
42	302786759
43	154615096
44	19563257
45	1922364
46	112416
47	1707
48	1

[0, 1, 1, 1, 4, 2, 15, 8, 1, 76, 40, 4, 455, 236, 28, 1, 3186, 1648, 198, 8, 25487, 13125, 1596, 111, 1, 229384, 117794, 14534, 1152, 16, 2293839, 1175224, 146372, 12929, 435, 1, 25232230, 12903874, 1621282, 152430, 6952, 32, 302786759, 154615096, 19563257, 1922364, 112416, 1707, 1]

cp's OEIS Frontend

A299789 Number T(n,k) of permutations p of [n] such that min_{j=1..n} |p(j)-j| = k; triangle T(n,k), n >= 0, 0 <= k <= floor(n/2), read by rows.

Table of values

List of values