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A221754
Number of nX7 arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor, without move-in move-out straight through or left turns
0
0, 171, 1680, 117067, 3143356, 128008894, 4330440582, 157745434617, 5576943832916, 199566264190831, 7105753950441404, 253532970709774991, 9038233928809650256
OFFSET
1,2
COMMENTS
Column 7 of A221755
EXAMPLE
Some solutions for n=3
..0..2..1..1..2..2..1....0..2..0..2..0..2..1....0..2..1..1..1..1..2
..1..1..0..1..0..2..1....2..0..1..1..1..2..0....1..1..0..1..0..2..0
..1..1..1..1..0..1..1....1..1..1..1..1..1..1....1..2..1..1..1..1..1
CROSSREFS
Sequence in context: A079654 A220869 A251329 * A036518 A187133 A185838
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 24 2013
STATUS
approved