A055599 - cp's OEIS frontend

A055599 Triangle T(n,k) read by rows, giving the number of n X n binary matrices with no zero rows or columns and with k=0..n^2 ones.

n	a(n)
1	0
2	1
3	0
4	0
5	2
6	4
7	1
8	0
9	0
10	0
11	6
12	45
13	90
14	78
15	36
16	9
17	1
18	0
19	0
20	0
21	0
22	24
23	432
24	2248
25	5776
26	9066
27	9696
28	7480
29	4272
30	1812
31	560
32	120
33	16
34	1
35	0
36	0
37	0
38	0
39	0
40	120
41	4200
42	43000
43	222925
44	727375
45	1674840
46	2913100
47	3995100
48	4441200
49	4073100
50	3114140
51	1994550

[0, 1, 0, 0, 2, 4, 1, 0, 0, 0, 6, 45, 90, 78, 36, 9, 1, 0, 0, 0, 0, 24, 432, 2248, 5776, 9066, 9696, 7480, 4272, 1812, 560, 120, 16, 1, 0, 0, 0, 0, 0, 120, 4200, 43000, 222925, 727375, 1674840, 2913100, 3995100, 4441200, 4073100, 3114140, 1994550]

cp's OEIS Frontend

A055599 Triangle T(n,k) read by rows, giving the number of n X n binary matrices with no zero rows or columns and with k=0..n^2 ones.

Table of values

List of values