A188445 - cp's OEIS frontend

A188445 T(n,k) is the number of (n*k) X k binary arrays with nonzero rows in decreasing order and n ones in every column.

n	a(n)
1	1
2	2
3	0
4	5
5	1
6	0
7	15
8	8
9	0
10	0
11	52
12	80
13	5
14	0
15	0
16	203
17	1088
18	205
19	1
20	0
21	0
22	877
23	19232
24	11301
25	278
26	0
27	0
28	0
29	4140
30	424400
31	904580
32	67198
33	205
34	0
35	0
36	0
37	21147
38	11361786
39	101173251
40	24537905
41	250735
42	80
43	0
44	0
45	0
46	115975
47	361058000
48	15207243828
49	13744869502

[1, 2, 0, 5, 1, 0, 15, 8, 0, 0, 52, 80, 5, 0, 0, 203, 1088, 205, 1, 0, 0, 877, 19232, 11301, 278, 0, 0, 0, 4140, 424400, 904580, 67198, 205, 0, 0, 0, 21147, 11361786, 101173251, 24537905, 250735, 80, 0, 0, 0, 115975, 361058000, 15207243828, 13744869502]

cp's OEIS Frontend

A188445 T(n,k) is the number of (n*k) X k binary arrays with nonzero rows in decreasing order and n ones in every column.

Table of values

List of values