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A222091
Number of nX3 arrays of occupancy after each element stays put or moves to some horizontal, vertical or antidiagonal neighbor, without move-in move-out left turns
1
8, 306, 11698, 439979, 16518325, 620167586, 23285438194, 874320487561, 32829136547878, 1232675333611674, 46284755942965861, 1737909791864677612, 65255401994426759727, 2450223514629565888639, 92001505833953763778608
OFFSET
1,1
COMMENTS
Column 3 of A222093
LINKS
EXAMPLE
Some solutions for n=3
..0..1..1....1..0..1....0..1..2....0..2..0....0..1..1....1..0..0....0..0..1
..1..0..3....2..3..0....0..1..2....4..0..0....0..2..1....1..3..0....3..1..1
..0..2..1....0..2..0....0..1..2....0..0..3....2..0..2....0..3..1....0..2..1
CROSSREFS
Sequence in context: A317457 A352591 A220998 * A193812 A222095 A231124
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 07 2013
STATUS
approved