A264832 Number of 2Xn arrays of permutations of 0..n*2-1 with rows nondecreasing modulo 4 and columns nondecreasing modulo 7.

1, 2, 4, 15, 134, 978, 10370, 114292, 2035620, 29935144, 567866832, 14295267600, 488489391072, 12470564424960

Offset: 1

Author

R. H. Hardin, Nov 26 2015

Keywords

• nonn

Comments

Row 2 of A264831.

Examples

			Some solutions for n=4
..4..0..1..7....0..1..7..3....0..2..7..3....0..1..2..7....0..1..5..7
..5..2..6..3....4..5..2..6....4..5..1..6....4..5..6..3....4..2..6..3
		

Crossrefs

Cf. A264831.