A246151 Number of inequivalent n X 6 binary matrices, where equivalence means permutations of rows or columns or the symbol set.
1, 4, 30, 200, 1682, 14386, 126446, 1072086, 8634775, 65131512, 458833583, 3019480776, 18613981197, 107872946328, 589972970841, 3056614640286, 15055478580209, 70734541129136, 317956967234165, 1371209464835074, 5687586601700518, 22742189340496714
Offset: 0
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Crossrefs
Column k=6 of A242093.