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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
OFFSET
1,1
COMMENTS
Column 3 of A203600
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
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 03 2012
STATUS
approved