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A203596 Number of nX3 0..2 arrays with the counts of all possible adjacent horizontal and vertical pair sum values being within one of each other 0
18, 46, 172, 1430, 17452, 225034, 3278068, 44996822, 678210234, 10630860542, 166229546776, 2711212581278, 44274361678950 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A203600

LINKS

Table of n, a(n) for n=1..13.

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Sequence in context: A250784 A250731 A353209 * A305171 A034132 A218630

Adjacent sequences: A203593 A203594 A203595 * A203597 A203598 A203599

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 03 2012

STATUS

approved

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Last modified February 1 03:56 EST 2023. Contains 359981 sequences. (Running on oeis4.)