A331708 - cp's OEIS frontend

A331708 Number of nonnegative integer matrices with distinct nonzero rows, total sum n, distinct columns with equals sums and columns in decreasing lexicographic order.

n	a(n)
1	1
2	2
3	4
4	10
5	6
6	100
7	14
8	832
9	1928
10	9280
11	66
12	409928
13	134
14	3138847
15	32173339
16	134531629
17	618
18	9353244335
19	1178
20	183394485615
21	2395983801112
22	2311773448717
23	4758
24	1479147860804022
25	311353753955807
26	3599356750729620
27	613047176698674761
28	1842753685676233794
29	30462

[1, 2, 4, 10, 6, 100, 14, 832, 1928, 9280, 66, 409928, 134, 3138847, 32173339, 134531629, 618, 9353244335, 1178, 183394485615, 2395983801112, 2311773448717, 4758, 1479147860804022, 311353753955807, 3599356750729620, 613047176698674761, 1842753685676233794, 30462]

cp's OEIS Frontend

A331708 Number of nonnegative integer matrices with distinct nonzero rows, total sum n, distinct columns with equals sums and columns in decreasing lexicographic order.

Table of values

List of values