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%I #3 Nov 29 2015 16:07:31
%S 1,4,54,1720,97341,8360853,1001060834,155796077603,30055866217955
%N Number of nX7 arrays of permutations of 7 copies of 0..n-1 with rows and columns nondecreasing.
%C Column 7 of A265005.
%e Some solutions for n=4
%e ..0..0..0..0..0..0..2....0..0..0..0..0..0..1....0..0..0..1..1..2..2
%e ..0..1..1..1..1..2..2....0..1..1..2..2..2..2....0..0..1..1..1..2..2
%e ..1..1..2..2..3..3..3....1..1..1..2..2..2..3....0..1..1..2..2..3..3
%e ..1..2..2..3..3..3..3....1..3..3..3..3..3..3....0..2..3..3..3..3..3
%Y Cf. A265005.
%K nonn
%O 1,2
%A _R. H. Hardin_, Nov 29 2015
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