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A221488
Number of 6Xn arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor, without consecutive moves in the same direction
0
0, 1024, 12494, 21576814, 2942599561, 1224264741193, 290839286759257, 90504836908421055
OFFSET
1,2
COMMENTS
Row 6 of A221483
EXAMPLE
Some solutions for n=3
..0..3..0....1..1..0....0..2..0....1..2..0....0..2..0....0..3..0....0..2..1
..1..1..1....1..2..0....1..3..0....0..1..1....1..3..0....1..0..1....1..2..0
..0..3..1....1..2..0....2..1..0....1..3..1....1..2..2....1..3..1....0..2..0
..1..1..0....1..3..0....0..1..1....0..2..0....0..1..0....0..2..0....2..1..0
..1..2..1....0..3..2....1..3..0....0..2..1....0..3..0....1..2..1....1..2..1
..0..2..0....0..1..0....0..2..1....1..2..0....1..1..1....0..2..0....0..3..0
CROSSREFS
Sequence in context: A198075 A197909 A218526 * A138334 A268124 A205611
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 17 2013
STATUS
approved