A058783 - cp's OEIS frontend

A058783 Number of n-rowed binary matrices with all row sums 4, up to row and column permutation; bipartite graphs with all nodes of degree 4 in a distinguished bipartite n-block, up to isomorphism.

n	a(n)
0	1
1	1
2	5
3	30
4	332
5	6414
6	226041
7	12848128
8	1064292052
9	119252205304
10	17239075745190
11	3113843614322530
12	686491853010870156
13	181386885029173595218
14	56595769613704915215101
15	20597536264356706999502705
16	8652615103513713632218678155
17	4157673185369121151936091009448

[1, 1, 5, 30, 332, 6414, 226041, 12848128, 1064292052, 119252205304, 17239075745190, 3113843614322530, 686491853010870156, 181386885029173595218, 56595769613704915215101, 20597536264356706999502705, 8652615103513713632218678155, 4157673185369121151936091009448]

cp's OEIS Frontend

A058783 Number of n-rowed binary matrices with all row sums 4, up to row and column permutation; bipartite graphs with all nodes of degree 4 in a distinguished bipartite n-block, up to isomorphism.

Table of values

List of values