A333160 - cp's OEIS frontend

A333160 Number of non-isomorphic n X n symmetric binary matrices with an equal number of ones in every row and column up to permutation of rows and columns.

n	a(n)
0	1
1	2
2	3
3	4
4	6
5	8
6	17
7	36
8	146
9	1066
10	15419
11	406684
12	19284912
13	1635874946
14	249424764407
15	68725494158824
16	34418706513939926
17	31487353344361957012
18	52887877379630894268187
19	163777247316556715401451972
20	939121048579630147375554814224

[1, 2, 3, 4, 6, 8, 17, 36, 146, 1066, 15419, 406684, 19284912, 1635874946, 249424764407, 68725494158824, 34418706513939926, 31487353344361957012, 52887877379630894268187, 163777247316556715401451972, 939121048579630147375554814224]

cp's OEIS Frontend

A333160 Number of non-isomorphic n X n symmetric binary matrices with an equal number of ones in every row and column up to permutation of rows and columns.

Table of values

List of values