A322093 - cp's OEIS frontend

A322093 Square array A(n,k), n >= 1, k >= 1, read by antidiagonals, where A(n,k) is the number of permutations of n copies of 1..k with no element equal to another within a distance of 1.

n	a(n)
1	1
2	2
3	0
4	6
5	2
6	0
7	24
8	30
9	2
10	0
11	120
12	864
13	174
14	2
15	0
16	720
17	39480
18	41304
19	1092
20	2
21	0
22	5040
23	2631600
24	19606320
25	2265024
26	7188
27	2
28	0
29	40320
30	241133760
31	16438575600
32	11804626080
33	134631576
34	48852
35	2
36	0
37	362880
38	29083420800
39	22278418248240
40	131402141197200
41	7946203275000
42	8437796016
43	339720
44	2
45	0

[1, 2, 0, 6, 2, 0, 24, 30, 2, 0, 120, 864, 174, 2, 0, 720, 39480, 41304, 1092, 2, 0, 5040, 2631600, 19606320, 2265024, 7188, 2, 0, 40320, 241133760, 16438575600, 11804626080, 134631576, 48852, 2, 0, 362880, 29083420800, 22278418248240, 131402141197200, 7946203275000, 8437796016, 339720, 2, 0]

cp's OEIS Frontend

A322093 Square array A(n,k), n >= 1, k >= 1, read by antidiagonals, where A(n,k) is the number of permutations of n copies of 1..k with no element equal to another within a distance of 1.

Table of values

List of values