A264833 Number of 3 X n arrays of permutations of 0..n*3-1 with rows nondecreasing modulo 4 and columns nondecreasing modulo 7.

1, 3, 33, 495, 17181, 881444, 43181739, 4357672022

Offset

1,2

Comments

Row 3 of A264831.

Links

Table of n, a(n) for n=1..8.

Example

Some solutions for n=4
..8..0..4..1....0..2..7..3....8..0.10..2....8..0..2..7....0..8.11..7
..2..7.11..3....8..4..1.10....1..7.11..3....1..9..3.11....9..1..5..3
..5..9..6.10....9..5..6.11....4..9..5..6....4..5.10..6....4..2..6.10

Crossrefs

Cf. A264831.

Sequence in context: A011922 A365028 A368442 * A071405 A234526 A243251

Adjacent sequences: A264830 A264831 A264832 * A264834 A264835 A264836

Keyword

nonn

Author

R. H. Hardin, Nov 26 2015

Status

approved