A211709 - cp's OEIS frontend

A211709 T(n,k) = number of n X k nonnegative integer arrays with new values 0 upwards introduced in row major order and every value unique in its row and column.

n	a(n)
1	1
2	1
3	1
4	1
5	4
6	1
7	1
8	18
9	18
10	1
11	1
12	108
13	588
14	108
15	1
16	1
17	780
18	30240
19	30240
20	780
21	1
22	1
23	6600
24	2277600
25	17427192
26	2277600
27	6600
28	1
29	1
30	63840
31	234440280
32	17741309400
33	17741309400
34	234440280
35	63840
36	1
37	1
38	693840
39	31448589480

[1, 1, 1, 1, 4, 1, 1, 18, 18, 1, 1, 108, 588, 108, 1, 1, 780, 30240, 30240, 780, 1, 1, 6600, 2277600, 17427192, 2277600, 6600, 1, 1, 63840, 234440280, 17741309400, 17741309400, 234440280, 63840, 1, 1, 693840, 31448589480]

cp's OEIS Frontend

A211709 T(n,k) = number of n X k nonnegative integer arrays with new values 0 upwards introduced in row major order and every value unique in its row and column.

Table of values

List of values