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A199040
Number of nX7 0..2 arrays with values 0..2 introduced in row major order, the number of instances of each value within one of each other, and every element equal to one or two horizontal or vertical neighbors
0
3, 877, 59384, 35902575, 7354780137
OFFSET
1,1
COMMENTS
Column 7 of A199041
EXAMPLE
Some solutions for n=4
..0..0..1..2..1..1..1....0..0..1..1..1..2..2....0..0..1..1..0..0..0
..0..1..1..2..2..2..1....0..2..2..2..0..0..2....0..1..2..2..2..2..2
..0..2..2..0..0..2..1....0..1..1..2..0..2..1....0..1..2..1..1..1..1
..0..0..2..0..2..2..1....0..0..1..1..1..2..1....0..0..2..1..2..2..1
CROSSREFS
Sequence in context: A203688 A253578 A167472 * A094592 A210768 A332193
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 02 2011
STATUS
approved