A304942 - cp's OEIS frontend

A304942 Triangle read by rows: T(n,k) is the number of nonisomorphic binary n X n matrices with k 1's per column under row and column permutations.

n	a(n)
0	1
1	1
2	1
3	1
4	2
5	1
6	1
7	3
8	3
9	1
10	1
11	5
12	11
13	5
14	1
15	1
16	7
17	35
18	35
19	7
20	1
21	1
22	11
23	132
24	410
25	132
26	11
27	1
28	1
29	15
30	471
31	6178
32	6178
33	471
34	15
35	1
36	1
37	22
38	1806
39	122038
40	594203
41	122038
42	1806
43	22
44	1
45	1
46	30
47	7042
48	2921607
49	85820809
50	85820809
51	2921607
52	7042
53	30
54	1

[1, 1, 1, 1, 2, 1, 1, 3, 3, 1, 1, 5, 11, 5, 1, 1, 7, 35, 35, 7, 1, 1, 11, 132, 410, 132, 11, 1, 1, 15, 471, 6178, 6178, 471, 15, 1, 1, 22, 1806, 122038, 594203, 122038, 1806, 22, 1, 1, 30, 7042, 2921607, 85820809, 85820809, 2921607, 7042, 30, 1]

cp's OEIS Frontend

A304942 Triangle read by rows: T(n,k) is the number of nonisomorphic binary n X n matrices with k 1's per column under row and column permutations.

Table of values

List of values