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A199646
Number of nX7 0..2 arrays with values 0..2 introduced in row major order and each element equal to one or two horizontal and vertical neighbors
0
11, 6628, 1396083, 342328663, 80053957248, 19161971644783, 4539946639286136, 1079929763429897946, 256503858825070983388
OFFSET
1,1
COMMENTS
Column 7 of A199647
EXAMPLE
Some solutions for n=3
..0..0..1..2..2..0..2....0..1..1..2..0..1..1....0..0..1..1..0..0..0
..0..0..1..2..2..0..2....0..0..0..2..0..2..2....0..0..2..2..0..2..0
..1..1..0..0..0..1..1....1..1..1..1..1..1..2....1..1..1..1..1..2..0
CROSSREFS
Sequence in context: A214162 A167068 A273942 * A214183 A214234 A320984
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 08 2011
STATUS
approved