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A246112
Number of inequivalent n X n matrices with entries from [6], where equivalence means permutations of rows or columns.
2
1, 6, 351, 289716, 4947097821, 1979525296377132, 19909522361922032493690, 5304145637506715118807098435916, 38963096281905114770318673967657388979120, 8141947887028911666338424253996955242756334258901612
OFFSET
0,2
CROSSREFS
Column k=6 of A246106.
Sequence in context: A000409 A214445 A059415 * A197780 A197611 A233463
KEYWORD
nonn
AUTHOR
Alois P. Heinz, Aug 14 2014
STATUS
approved