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Number of nX3 arrays of permutations of 0..n*3-1 with rows nondecreasing modulo 6 and columns nondecreasing modulo 7.
0

%I #3 Nov 26 2015 20:02:22

%S 1,5,30,839,15000,530302,7041672,211818498,5213013996

%N Number of nX3 arrays of permutations of 0..n*3-1 with rows nondecreasing modulo 6 and columns nondecreasing modulo 7.

%C Column 3 of A264862.

%e Some solutions for n=4

%e ..7..8..2....0..1..9....7..1..3....0..7..8....0..7..8....0..1..9....0..7.10

%e ..0..1.10....7..8..2....0..8.10....1..9..3....1..2..3....7..8..3....1..2..3

%e ..9..3.11....3..4.10....2..9..4....2..4.10....9.10..4....2..4.10....8..9..4

%e ..6..4..5....6..5.11....6..5.11....6.11..5....6..5.11....6.11..5....6.11..5

%Y Cf. A264862.

%K nonn

%O 1,2

%A _R. H. Hardin_, Nov 26 2015