A331651 - cp's OEIS frontend

A331651 Number of binary matrices with distinct nonzero rows, a total of n ones and distinct columns each with the same number of ones and columns in decreasing lexicographic order.

n	a(n)
1	1
2	1
3	1
4	4
5	1
6	18
7	1
8	231
9	185
10	3265
11	1
12	78115
13	1
14	1287063
15	2711905
16	32669406
17	1
18	1568741156
19	1
20	29488026590
21	232383728379
22	967596779632
23	1
24	147586156446663
25	585810653617
26	1509052435744561
27	61466235823794522
28	96920622619890141
29	1
30	47758782949643628393

[1, 1, 1, 4, 1, 18, 1, 231, 185, 3265, 1, 78115, 1, 1287063, 2711905, 32669406, 1, 1568741156, 1, 29488026590, 232383728379, 967596779632, 1, 147586156446663, 585810653617, 1509052435744561, 61466235823794522, 96920622619890141, 1, 47758782949643628393]

cp's OEIS Frontend

A331651 Number of binary matrices with distinct nonzero rows, a total of n ones and distinct columns each with the same number of ones and columns in decreasing lexicographic order.

Table of values

List of values