A278855 - cp's OEIS frontend

A278855 T(n,k)=Number of nXk 0..1 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly three mistakes.

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	1
9	1
10	0
11	0
12	25
13	66
14	25
15	0
16	1
17	239
18	1348
19	1348
20	239
21	1
22	8
23	1486
24	15066
25	30772
26	15066
27	1486
28	8
29	36
30	7072
31	118158
32	449677
33	449677
34	118158
35	7072
36	36
37	120
38	27828
39	731444
40	4950399
41	9317846
42	4950399
43	731444
44	27828
45	120
46	330
47	94720
48	3813048

[0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 25, 66, 25, 0, 1, 239, 1348, 1348, 239, 1, 8, 1486, 15066, 30772, 15066, 1486, 8, 36, 7072, 118158, 449677, 449677, 118158, 7072, 36, 120, 27828, 731444, 4950399, 9317846, 4950399, 731444, 27828, 120, 330, 94720, 3813048]

cp's OEIS Frontend

A278855 T(n,k)=Number of nXk 0..1 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly three mistakes.

Table of values

List of values