A265190 Number of nX3 arrays containing 3 copies of 0..n-1 with no equal horizontal or antidiagonal neighbors and new values introduced sequentially from 0.

0, 0, 17, 774, 76035, 10866362, 2130866037, 551607137250, 182413680759659, 75075411378226014, 37647855624072772341

Offset

1,3

Comments

Column 3 of A265192.

Links

Table of n, a(n) for n=1..11.

Example

Some solutions for n=4
..0..1..0....0..1..0....0..1..2....0..1..2....0..1..2....0..1..2....0..1..2
..2..1..3....0..2..1....3..0..3....3..0..1....3..0..2....2..3..1....3..0..2
..2..1..2....3..2..3....1..2..0....3..2..0....1..3..1....2..0..3....3..1..2
..3..0..3....1..2..3....1..3..2....1..3..2....0..3..2....3..0..1....3..0..1

Crossrefs

Cf. A265192.

Sequence in context: A368492 A012221 A012144 * A308490 A249459 A191963

Adjacent sequences: A265187 A265188 A265189 * A265191 A265192 A265193

Keyword

nonn

Author

R. H. Hardin, Dec 04 2015

Status

approved