A133687 - cp's OEIS frontend

A133687 Triangle with number of equivalence classes of n X n matrices over {0,1} with rows and columns summing to k (0<=k<=n), where equivalence is defined by row and column permutations.

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	1
9	1
10	1
11	1
12	2
13	1
14	1
15	1
16	1
17	2
18	2
19	1
20	1
21	1
22	1
23	4
24	7
25	4
26	1
27	1
28	1
29	1
30	4
31	16
32	16
33	4
34	1
35	1
36	1
37	1
38	7
39	51
40	194
41	51
42	7
43	1
44	1
45	1
46	1
47	8
48	224
49	3529
50	3529
51	224
52	8
53	1
54	1
55	1
56	1
57	12
58	1165
59	121790
60	601055
61	121790
62	1165
63	12
64	1
65	1
66	1
67	1
68	14
69	7454
70	5582612
71	156473848
72	156473848
73	5582612
74	7454
75	14
76	1
77	1

[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 2, 1, 1, 1, 1, 4, 7, 4, 1, 1, 1, 1, 4, 16, 16, 4, 1, 1, 1, 1, 7, 51, 194, 51, 7, 1, 1, 1, 1, 8, 224, 3529, 3529, 224, 8, 1, 1, 1, 1, 12, 1165, 121790, 601055, 121790, 1165, 12, 1, 1, 1, 1, 14, 7454, 5582612, 156473848, 156473848, 5582612, 7454, 14, 1, 1]

cp's OEIS Frontend

A133687 Triangle with number of equivalence classes of n X n matrices over {0,1} with rows and columns summing to k (0<=k<=n), where equivalence is defined by row and column permutations.

Table of values

List of values