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%I #3 Nov 26 2015 07:06:06
%S 1,4,33,288,5400,165333,4348623,208444341
%N Number of nX3 arrays of permutations of 0..n*3-1 with rows nondecreasing modulo 4 and columns nondecreasing modulo 7.
%C Column 3 of A264831.
%e Some solutions for n=4
%e ..0.11..7....8..0..1....8..0..7....8..0..2....0..1..7....8..0..9....0..8..7
%e ..8..4..1...10..7..3....9..1..3....1..7..3....8.10..2...11..7..3....4..1..9
%e ..9..5..3....4..9.11....4..2.10....9..5.10....9.11..3....4..1.10....5..2..3
%e ..2..6.10....5..2..6....5..6.11....4..6.11....4..5..6....5..2..6....6.10.11
%Y Cf. A264831.
%K nonn
%O 1,2
%A _R. H. Hardin_, Nov 26 2015
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