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A265880 Number of nX3 arrays containing 3 copies of 0..n-1 with no element plus any horizontal neighbor equal to n-1. 0
0, 2, 152, 30488, 18437120, 13734486480, 21429982230720, 40229528835726720, 131323790370474455040 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 3 of A265882.

LINKS

Table of n, a(n) for n=1..9.

EXAMPLE

Some solutions for n=4

..3..1..3....3..1..1....2..0..2....3..1..3....3..1..0....1..3..1....3..2..0

..2..0..0....1..3..2....1..1..3....0..1..1....1..3..1....2..2..3....1..1..3

..3..1..1....2..0..0....0..0..2....3..2..0....0..2..3....0..1..0....0..0..2

..0..2..2....0..2..3....3..3..1....0..2..2....2..2..0....0..2..3....1..3..2

CROSSREFS

Cf. A265882.

Sequence in context: A113576 A102458 A206309 * A064436 A012605 A012602

Adjacent sequences:  A265877 A265878 A265879 * A265881 A265882 A265883

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 17 2015

STATUS

approved

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Last modified October 20 03:04 EDT 2021. Contains 348099 sequences. (Running on oeis4.)