A202549 - cp's OEIS frontend

A202549 T(n,k) = Number of n X k nonnegative integer arrays with each row and column an ascent sequence (interior element no greater than one plus up-steps preceding it).

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	1
7	1
8	4
9	4
10	1
11	1
12	8
13	18
14	8
15	1
16	1
17	16
18	86
19	86
20	16
21	1
22	1
23	32
24	422
25	1094
26	422
27	32
28	1
29	1
30	64
31	2094
32	15184
33	15184
34	2094
35	64
36	1
37	1
38	128
39	10438
40	219934
41	658492
42	219934
43	10438
44	128
45	1
46	1
47	256
48	52126
49	3249298
50	31670778
51	31670778
52	3249298
53	52126
54	256
55	1
56	1
57	512

[1, 1, 1, 1, 2, 1, 1, 4, 4, 1, 1, 8, 18, 8, 1, 1, 16, 86, 86, 16, 1, 1, 32, 422, 1094, 422, 32, 1, 1, 64, 2094, 15184, 15184, 2094, 64, 1, 1, 128, 10438, 219934, 658492, 219934, 10438, 128, 1, 1, 256, 52126, 3249298, 31670778, 31670778, 3249298, 52126, 256, 1, 1, 512]

cp's OEIS Frontend

A202549 T(n,k) = Number of n X k nonnegative integer arrays with each row and column an ascent sequence (interior element no greater than one plus up-steps preceding it).

Table of values

List of values