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A265678 Number of nX3 arrays containing 3 copies of 0..n-1 with no equal vertical or antidiagonal neighbors and new values introduced sequentially from 0. 0
1, 1, 17, 632, 54920, 7286105, 1365147580, 342267410418, 110526428031479, 44658757291775157 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

Column 3 of A265679.

LINKS

Table of n, a(n) for n=1..10.

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Cf. A265679.

Sequence in context: A222615 A012219 A219075 * A200907 A203170 A063941

Adjacent sequences:  A265675 A265676 A265677 * A265679 A265680 A265681

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 13 2015

STATUS

approved

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Last modified December 8 18:37 EST 2019. Contains 329865 sequences. (Running on oeis4.)