A264706 - OEIS

A264706

Number of 3Xn arrays of permutations of 0..n*3-1 with rows nondecreasing modulo 2 and columns nondecreasing modulo 6.

1, 6, 296, 26304, 4689792, 1263257856, 603321053184, 385412086628352, 382508133580800000, 477523568775168000000, 856794749386752000000000, 1851692207671061250048000000, 5408719104217196326551552000000, 18533681714199092547500900352000000, 82632308645350076266820501766144000000

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OFFSET

1,2

COMMENTS

Row 3 of A264704.

LINKS

Table of n, a(n) for n=1..15.

EXAMPLE

Some solutions for n=4

.10..8..0..7....8..6..0..7....6..0..8..2....4..0..2..1....0..1..7..9

..4..2..6..1....4..1..5..9....4..7..9..3...10..6..8..9....6..4..2..3

..5..3.11..9...10..2.11..3...10..1.11..5....5..7.11..3....8.10..5.11