A252876 - cp's OEIS frontend

A252876 T(n,k) = Number of n X k nonnegative integer arrays with upper left 0 and lower right n+k-4 and value increasing by 0 or 1 with every step right or down.

n	a(n)
1	0
2	0
3	0
4	1
5	1
6	1
7	3
8	8
9	8
10	3
11	6
12	26
13	44
14	26
15	6
16	10
17	61
18	153
19	153
20	61
21	10
22	15
23	120
24	413
25	615
26	413
27	120
28	15
29	21
30	211
31	949
32	1953
33	1953
34	949
35	211
36	21
37	28
38	343
39	1948
40	5281
41	7313
42	5281
43	1948
44	343
45	28
46	36
47	526
48	3676
49	12686
50	23203
51	23203
52	12686
53	3676
54	526
55	36
56	45
57	771
58	6497
59	27805
60	64920
61	85801
62	64920
63	27805
64	6497
65	771
66	45

[0, 0, 0, 1, 1, 1, 3, 8, 8, 3, 6, 26, 44, 26, 6, 10, 61, 153, 153, 61, 10, 15, 120, 413, 615, 413, 120, 15, 21, 211, 949, 1953, 1953, 949, 211, 21, 28, 343, 1948, 5281, 7313, 5281, 1948, 343, 28, 36, 526, 3676, 12686, 23203, 23203, 12686, 3676, 526, 36, 45, 771, 6497, 27805, 64920, 85801, 64920, 27805, 6497, 771, 45]

cp's OEIS Frontend

A252876 T(n,k) = Number of n X k nonnegative integer arrays with upper left 0 and lower right n+k-4 and value increasing by 0 or 1 with every step right or down.

Table of values

List of values