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A264713
Number of nX3 arrays of permutations of 0..n*3-1 with rows nondecreasing modulo 5 and columns nondecreasing modulo 6.
0
1, 2, 40, 815, 22320, 352181, 8549705, 286833177
OFFSET
1,2
COMMENTS
Column 3 of A264714.
EXAMPLE
Some solutions for n=5
..6.12..7....0..1.12....0..6..2....0..1..6....6..1..7....6..1..7....0..6.14
..0..1.13....6..8.13...12..7..8...12..2..7....0.13..8...12..2.13....1.12..2
..2..9.14....7..2..9...13..3.14...13..8.14...12..2.14....0..3.14....7.13..3
.10..3..8....3.14..4....1..4..9....3..9..4....5.10..3....8..9..4....8..9..4
..5.11..4...10..5.11...10..5.11....5.10.11...11..4..9....5.10.11....5.10.11
CROSSREFS
Cf. A264714.
Sequence in context: A230133 A279214 A264716 * A012637 A127429 A322179
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 21 2015
STATUS
approved