login
A246151
Number of inequivalent n X 6 binary matrices, where equivalence means permutations of rows or columns or the symbol set.
1
1, 4, 30, 200, 1682, 14386, 126446, 1072086, 8634775, 65131512, 458833583, 3019480776, 18613981197, 107872946328, 589972970841, 3056614640286, 15055478580209, 70734541129136, 317956967234165, 1371209464835074, 5687586601700518, 22742189340496714
OFFSET
0,2
CROSSREFS
Column k=6 of A242093.
Sequence in context: A344399 A268218 A272493 * A094567 A134093 A007905
KEYWORD
nonn
AUTHOR
Alois P. Heinz, Aug 17 2014
STATUS
approved