A264709 T(n,k)=Number of nXk arrays of permutations of 0..n*k-1 with rows nondecreasing modulo 3 and columns nondecreasing modulo 6.
1, 1, 1, 1, 1, 1, 2, 8, 4, 1, 4, 84, 152, 28, 1, 8, 800, 8064, 4544, 176, 1, 24, 15360, 789696, 1555200, 202176, 1600, 2, 72, 357696, 120512448, 2248445952, 963726336, 10964160, 16128, 4, 216, 6873984, 29928517632, 3889709973504
Offset: 1
Examples
Some solutions for n=3 k=4 ..6..1..7..8....0..1..7.10....3..6..0..9....0..6..7..1....0..9..4..1 ..0..3..2.11....6..8..2.11...10..1..7..4....3..9..2..8....6..3.10..7 ..9..4.10..5....9..3..4..5....5..2..8.11....4.10..5.11....8..5.11..2
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