A188448 - cp's OEIS frontend

A188448 T(n,k)=Number of (n*k)Xk binary arrays with nonzero rows in decreasing order, no more than 2 ones in any row and exactly n ones in every column.

n	a(n)
1	1
2	2
3	0
4	4
5	1
6	0
7	10
8	4
9	0
10	0
11	26
12	18
13	1
14	0
15	0
16	76
17	112
18	10
19	0
20	0
21	0
22	232
23	820
24	112
25	1
26	0
27	0
28	0
29	764
30	6912
31	1760
32	26
33	0
34	0
35	0
36	0
37	2620
38	66178
39	35150
40	820
41	1
42	0
43	0
44	0
45	0
46	9496
47	708256
48	848932
49	35150
50	76
51	0
52	0
53	0
54	0
55	0
56	35696
57	8372754
58	24243520
59	1944530
60	6912
61	1
62	0
63	0
64	0
65	0

[1, 2, 0, 4, 1, 0, 10, 4, 0, 0, 26, 18, 1, 0, 0, 76, 112, 10, 0, 0, 0, 232, 820, 112, 1, 0, 0, 0, 764, 6912, 1760, 26, 0, 0, 0, 0, 2620, 66178, 35150, 820, 1, 0, 0, 0, 0, 9496, 708256, 848932, 35150, 76, 0, 0, 0, 0, 0, 35696, 8372754, 24243520, 1944530, 6912, 1, 0, 0, 0, 0]

cp's OEIS Frontend

A188448 T(n,k)=Number of (n*k)Xk binary arrays with nonzero rows in decreasing order, no more than 2 ones in any row and exactly n ones in every column.

Table of values

List of values