A188403 - cp's OEIS frontend

A188403 T(n,k) = Number of (n*k) X k binary arrays with rows in nonincreasing order, n ones in every column and no more than 2 ones in any row.

n	a(n)
1	1
2	2
3	1
4	4
5	3
6	1
7	10
8	11
9	4
10	1
11	26
12	56
13	23
14	5
15	1
16	76
17	348
18	214
19	42
20	6
21	1
22	232
23	2578
24	2698
25	641
26	69
27	7
28	1
29	764
30	22054
31	44288
32	14751
33	1620
34	106
35	8
36	1
37	2620
38	213798
39	902962
40	478711
41	62781
42	3616
43	154
44	9
45	1
46	9496
47	2313638
48	22262244
49	20758650
50	3710272
51	222190
52	7340
53	215
54	10
55	1

[1, 2, 1, 4, 3, 1, 10, 11, 4, 1, 26, 56, 23, 5, 1, 76, 348, 214, 42, 6, 1, 232, 2578, 2698, 641, 69, 7, 1, 764, 22054, 44288, 14751, 1620, 106, 8, 1, 2620, 213798, 902962, 478711, 62781, 3616, 154, 9, 1, 9496, 2313638, 22262244, 20758650, 3710272, 222190, 7340, 215, 10, 1]

cp's OEIS Frontend

A188403 T(n,k) = Number of (n*k) X k binary arrays with rows in nonincreasing order, n ones in every column and no more than 2 ones in any row.

Table of values

List of values