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%I #14 Dec 21 2019 15:44:10
%S 6,30,2046,3436102,147978735402
%N Number of n X n 0..5 arrays with row and column sums one greater than the previous row and column.
%e Some solutions for n = 3:
%e ..1..5..5....0..2..4....5..0..1....0..3..3....0..2..4....3..2..2....0..5..1
%e ..5..4..3....2..3..2....0..2..5....2..3..2....5..2..0....1..4..3....1..1..5
%e ..5..3..5....4..2..2....1..5..2....4..1..3....1..3..4....3..2..4....5..1..2
%Y Column 5 of A202864.
%K nonn,more
%O 1,1
%A _R. H. Hardin_, Dec 25 2011
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