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%I #4 Nov 21 2015 07:47:45
%S 1,2,3,22,93,790,7202,53884,640932,7175700,150597632,3323171712,
%T 92150022336,2899990063360,72285872321536
%N Number of nX2 arrays of permutations of 0..n*2-1 with rows nondecreasing modulo 4 and columns nondecreasing modulo 5.
%C Column 2 of A264698.
%e Some solutions for n=6
%e ..5.11....0..1....0..1....0..5....5..1....0..5....5.10....5.10....0.11....5.10
%e ..0..6...10.11....5.11...10..6...10.11....6.10....0.11....0.11...10..6....0..6
%e .10..2....5..6...10..6...11..7....0..6....7.11....6..2....1..6....5..1....8..1
%e ..1..7....8..2....8..7....1..2....8..7....8..1....1..7....2..7....3..7....3.11
%e ..4..8....4..7....4..2....9..3....4..2....9..2....4..8....8..3....9..2....4..2
%e ..9..3....9..3....9..3....4..8....9..3....4..3....9..3....4..9....4..8....9..7
%Y Cf. A264698.
%K nonn
%O 1,2
%A _R. H. Hardin_, Nov 21 2015