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A222394
Number of n X n 0..2 arrays with exactly floor(n X n/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..2 order
0
1, 0, 4, 162, 4644, 1732004, 506779353, 1649738877643
OFFSET
1,3
COMMENTS
Diagonal of A222402
EXAMPLE
Some solutions for n=4
..0..0..0..1....0..0..0..0....0..0..0..0....0..1..2..1....0..1..0..1
..0..0..0..1....0..0..0..0....0..0..0..0....2..2..2..2....0..0..0..0
..0..0..0..1....1..1..0..0....0..0..0..0....2..2..2..2....0..0..0..0
..0..0..0..2....1..1..0..0....0..1..1..2....2..2..2..2....0..0..0..0
CROSSREFS
Sequence in context: A248330 A157463 A041779 * A306350 A125532 A229405
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 18 2013
STATUS
approved