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A199654
Number of nX7 0..2 arrays with values 0..2 introduced in row major order and each element equal to no more than two horizontal and vertical neighbors
1
365, 571530, 713445976, 898852775335, 1132589231853096, 1427019666767669979, 1797997097480559332224, 2265416280260844187870380, 2854348741463033805904551375, 3596383952736036093799275624989
OFFSET
1,1
COMMENTS
Column 7 of A199655
LINKS
EXAMPLE
Some solutions for n=3
..0..0..0..1..2..1..0....0..0..0..1..1..1..2....0..0..0..0..1..2..1
..0..1..0..2..0..2..1....0..1..0..2..0..0..2....0..1..1..1..2..2..1
..0..0..0..1..0..0..0....0..0..0..1..1..2..0....0..0..0..2..0..0..2
CROSSREFS
Sequence in context: A209106 A208257 A223132 * A241113 A208321 A208391
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 08 2011
STATUS
approved