A318537 - cp's OEIS frontend

A318537 Irregular triangle read by rows: T(n,m) is the number of n X m (0,1)-matrices with pairwise distinct nonzero columns and pairwise distinct nonzero rows, n >= 0, m = 0..2^n-1.

n	a(n)
0	1
1	0
2	1
3	0
4	0
5	6
6	6
7	0
8	0
9	6
10	174
11	840
12	2520
13	5040
14	5040
15	0
16	0
17	0
18	840
19	24360
20	335160
21	3553200
22	32382000
23	259459200
24	1816214400
25	10897286400
26	54486432000
27	217945728000
28	653837184000
29	1307674368000
30	1307674368000
31	0
32	0
33	0
34	2520
35	335160
36	15198120
37	476496720
38	12767000400
39	314181504000
40	7288444800000

[1, 0, 1, 0, 0, 6, 6, 0, 0, 6, 174, 840, 2520, 5040, 5040, 0, 0, 0, 840, 24360, 335160, 3553200, 32382000, 259459200, 1816214400, 10897286400, 54486432000, 217945728000, 653837184000, 1307674368000, 1307674368000, 0, 0, 0, 2520, 335160, 15198120, 476496720, 12767000400, 314181504000, 7288444800000]

cp's OEIS Frontend

A318537 Irregular triangle read by rows: T(n,m) is the number of n X m (0,1)-matrices with pairwise distinct nonzero columns and pairwise distinct nonzero rows, n >= 0, m = 0..2^n-1.

Table of values

List of values