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

1,2

Comments

Row 2 of A264831.

Links

Table of n, a(n) for n=1..14.

Example

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.

Sequence in context: A120490 A003514 A065598 * A100528 A378300 A132483

Adjacent sequences: A264829 A264830 A264831 * A264833 A264834 A264835

Keyword

nonn

Author

R. H. Hardin, Nov 26 2015

Status

approved