A266308 - OEIS

A266308

Number of nX4 arrays of permutations of 4 copies of 0..n-1 with no element 1 greater than its west neighbor modulo n and the upper left element equal to 0.

1, 1, 265, 442285, 1935720551, 18647592370365, 346767829206699720, 11380449914002871787995

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OFFSET

1,3

COMMENTS

Column 4 of A266309.

LINKS

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

EXAMPLE

Some solutions for n=3

..0..2..1..1....0..2..1..1....0..2..1..0....0..0..2..2....0..2..2..1

..0..0..2..1....0..0..2..2....2..2..1..1....1..1..1..1....0..2..1..1

..2..2..1..0....2..1..1..0....1..0..0..2....0..0..2..2....2..1..0..0

CROSSREFS

Cf. A266309.

Sequence in context: A023043 A211719 A210120 * A278141 A091676 A061662

Adjacent sequences: A266305 A266306 A266307 * A266309 A266310 A266311

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 26 2015

STATUS

approved