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A221806
Number of nX3 arrays of occupancy after each element moves to some horizontal, vertical or antidiagonal neighbor, without move-in move-out straight through or left turns
1
0, 34, 154, 3426, 30716, 437374, 4798574, 60643243, 708210084, 8638426210, 102851006026, 1241050341705, 14864487744061, 178769429361071, 2145106707834543, 25772189455414412, 309421866097564512
OFFSET
1,2
COMMENTS
Column 3 of A221809
LINKS
EXAMPLE
Some solutions for n=3
..1..0..0....1..1..2....2..1..0....1..1..0....1..1..1....1..1..0....0..2..1
..2..2..2....1..1..1....0..2..1....1..2..1....1..1..1....1..1..2....2..2..0
..0..1..1....1..1..0....0..3..0....1..1..1....0..1..2....1..1..1....0..1..1
CROSSREFS
Sequence in context: A192398 A167241 A028470 * A321533 A345157 A345126
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 26 2013
STATUS
approved