A278325 - cp's OEIS frontend

A278325 T(n,k)=Number of nXk 0..1 arrays with rows and columns in lexicographic nondecreasing order but with exactly two mistakes.

n	a(n)
1	0
2	0
3	0
4	0
5	3
6	0
7	1
8	20
9	20
10	1
11	6
12	94
13	236
14	94
15	6
16	21
17	395
18	1678
19	1678
20	395
21	21
22	56
23	1492
24	9714
25	19854
26	9714
27	1492
28	56
29	126
30	4991
31	51229
32	186987
33	186987
34	51229
35	4991
36	126
37	252
38	14848
39	251892
40	1548002
41	3058990
42	1548002
43	251892
44	14848
45	252
46	462
47	39832
48	1144205

[0, 0, 0, 0, 3, 0, 1, 20, 20, 1, 6, 94, 236, 94, 6, 21, 395, 1678, 1678, 395, 21, 56, 1492, 9714, 19854, 9714, 1492, 56, 126, 4991, 51229, 186987, 186987, 51229, 4991, 126, 252, 14848, 251892, 1548002, 3058990, 1548002, 251892, 14848, 252, 462, 39832, 1144205]

cp's OEIS Frontend

A278325 T(n,k)=Number of nXk 0..1 arrays with rows and columns in lexicographic nondecreasing order but with exactly two mistakes.

Table of values

List of values