A264716 Number of 3Xn arrays of permutations of 0..n*3-1 with rows nondecreasing modulo 5 and columns nondecreasing modulo 6.

1, 2, 40, 803, 23775, 468540, 17266449, 741373873

Offset

1,2

Comments

Row 3 of A264714.

Links

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

Example

Some solutions for n=5
.10..0..6..1.14....0..1.12..7..2...10..0..6..1.12....0..6..1.13..8
..5..7.12..8..9....6.11.13..9.14...11..2..7..3.13...11.12..2..7..3
.11..2.13..3..4...10..5..8..3..4....5..8.14..4..9....5.10..4.14..9

Crossrefs

Cf. A264714.

Sequence in context: A139747 A230133 A279214 * A264713 A012637 A127429

Adjacent sequences: A264713 A264714 A264715 * A264717 A264718 A264719

Keyword

nonn

Author

R. H. Hardin, Nov 21 2015

Status

approved