A331318 - cp's OEIS frontend

A331318 Number of nonnegative integer matrices with total sum n, distinct columns with equal sums and any number of distinct nonzero rows in decreasing lexicographic order.

n	a(n)
1	1
2	2
3	3
4	7
5	4
6	47
7	6
8	317
9	326
10	3730
11	13
12	78625
13	19
14	1372944
15	824798
16	36641157
17	39
18	1211620030
19	55
20	41615035330
21	9881046310
22	1743624029061
23	105
24	85034153219895
25	10679934643
26	4476101995508420
27	385900622506127
28	268621480352669227
29	257
30	17969848317035340096

[1, 2, 3, 7, 4, 47, 6, 317, 326, 3730, 13, 78625, 19, 1372944, 824798, 36641157, 39, 1211620030, 55, 41615035330, 9881046310, 1743624029061, 105, 85034153219895, 10679934643, 4476101995508420, 385900622506127, 268621480352669227, 257, 17969848317035340096]

cp's OEIS Frontend

A331318 Number of nonnegative integer matrices with total sum n, distinct columns with equal sums and any number of distinct nonzero rows in decreasing lexicographic order.

Table of values

List of values