login
A199653
Number of nX6 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
122, 67774, 31120632, 14399942873, 6663970316970, 3083761998081891, 1427019666767669979, 660357476435139192982, 305582323780950052573456, 141409100632588861437301956, 65437468685616944338442793185
OFFSET
1,1
COMMENTS
Column 6 of A199655
LINKS
EXAMPLE
Some solutions for n=3
..0..0..0..1..1..0....0..0..0..0..1..0....0..0..0..1..1..0....0..0..0..1..1..0
..0..1..1..1..0..0....0..1..2..0..1..0....0..1..2..0..2..2....0..1..0..2..1..2
..0..0..0..2..0..1....0..0..0..2..0..1....0..0..0..0..2..1....0..0..1..0..1..2
CROSSREFS
Sequence in context: A223131 A208256 A198714 * A241112 A240705 A208320
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 08 2011
STATUS
approved