A264715 Number of 2Xn arrays of permutations of 0..n*2-1 with rows nondecreasing modulo 5 and columns nondecreasing modulo 6.

1, 2, 2, 18, 116, 627, 6211, 59011, 449824, 5256100, 90734544, 1163859524, 24333174896, 578216191424, 11292787466976

Offset: 1

Author

R. H. Hardin, Nov 21 2015

Keywords

• nonn

Comments

Row 2 of A264714.

Examples

			Some solutions for n=6
..0.11..1..6..8..9...10..0..1..6..2..7....0..5..6..1..3..8....0.11..1..6..7..3
.10..5..7..2..3..4....5.11..3..8..4..9...10.11..7..2..9..4...10..5..2..8..4..9
		

Crossrefs

Cf. A264714.