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%I #7 May 02 2022 09:43:43
%S 1,1,9,777,18093088,147696354159600,120281515483611806096331,
%T 6213452807971612556736028733196419,
%U 19985669779698663662722527807833218991804567911,4114852471732264714685900791520508800628430894815984377778000
%N Number of inequivalent n X n matrices with entries from [9], where equivalence means permutations of rows or columns or the symbol set.
%H <a href="/index/Mat#inequiv">Index to number of inequivalent matrices modulo permutation of rows and columns</a>
%Y Column k=9 of A242095.
%K nonn
%O 0,3
%A _Alois P. Heinz_, Aug 15 2014