A265371 - OEIS

A265371

Number of nX3 arrays containing 3 copies of 0..n-1 with no equal horizontal, vertical or antidiagonal neighbors and new values introduced sequentially from 0.

0, 0, 1, 32, 4954, 878953, 192333677, 53404173562, 18545695848787, 7914432322153846

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OFFSET

1,4

COMMENTS

Column 3 of A265373.

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Cf. A265373.

Sequence in context: A248000 A278302 A071310 * A232913 A209542 A028461

Adjacent sequences: A265368 A265369 A265370 * A265372 A265373 A265374

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 07 2015

STATUS

approved