A264697 Number of nX3 arrays of permutations of 0..n*3-1 with rows nondecreasing modulo 4 and columns nondecreasing modulo 5.

1, 5, 68, 1378, 26662, 975419, 54443028, 4147768144

Offset: 1

Author

R. H. Hardin, Nov 21 2015

Keywords

• nonn

Comments

Column 3 of A264698.

Examples

			Some solutions for n=5
.12..5.10....5..6.10...10.11..7....5..7.11....0..6.10....5..6.10....0..1.10
..8..0..6....0.11..7....5..1..2....0..8..1....1.13..5....0..8..1....5..6.11
.13.11..7...12..1..2....0..8.12...10.14..6....7..3.11....2..3.11....8.12..2
..9..1..3....4..8..3....6.14..3...12..4..2...12..9..2...12.13..7....4..7..3
..4..2.14....9.13.14....4..9.13...13..9..3....8..4.14....4..9.14....9.13.14
		

Crossrefs

Cf. A264698.