A331160 - cp's OEIS frontend

A331160 Array read by antidiagonals: A(n,k) is the number of nonnegative integer matrices with k distinct columns and any number of distinct nonzero rows with column sums n and rows in decreasing lexicographic order.

n	a(n)
0	1
1	1
2	1
3	0
4	1
5	1
6	0
7	1
8	1
9	1
10	0
11	1
12	4
13	2
14	1
15	0
16	1
17	27
18	15
19	2
20	1
21	0
22	1
23	266
24	317
25	44
26	3
27	1
28	0
29	1
30	3599
31	12586
32	2763
33	120
34	4
35	1
36	0
37	1
38	62941
39	803764
40	390399
41	21006
42	319
43	5
44	1
45	0
46	1
47	1372117
48	75603729
49	103678954
50	10074052
51	147296
52	804
53	6
54	1

[1, 1, 1, 0, 1, 1, 0, 1, 1, 1, 0, 1, 4, 2, 1, 0, 1, 27, 15, 2, 1, 0, 1, 266, 317, 44, 3, 1, 0, 1, 3599, 12586, 2763, 120, 4, 1, 0, 1, 62941, 803764, 390399, 21006, 319, 5, 1, 0, 1, 1372117, 75603729, 103678954, 10074052, 147296, 804, 6, 1]

cp's OEIS Frontend

A331160 Array read by antidiagonals: A(n,k) is the number of nonnegative integer matrices with k distinct columns and any number of distinct nonzero rows with column sums n and rows in decreasing lexicographic order.

Table of values

List of values