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A222322
Number of nX2 0..1 arrays with exactly floor(nX2/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..1 order
1
0, 0, 0, 7, 0, 32, 0, 168, 0, 948, 0, 5279, 0, 29868, 0, 170435, 0, 978324, 0, 5646204, 0, 32726780, 0, 190380464, 0, 1110922620, 0, 6499777527, 0, 38116781580, 0, 223982494824, 0, 1318530693372, 0, 7774269747257, 0, 45903969026388, 0
OFFSET
1,4
COMMENTS
Column 2 of A222328
LINKS
EXAMPLE
All solutions for n=4
..0..1....0..1....0..0....0..0....0..0....0..0....0..0
..0..0....1..1....0..0....1..1....0..0....0..0....0..0
..0..0....1..1....0..0....1..1....1..1....0..0....0..0
..0..0....1..1....1..1....1..1....1..1....1..0....0..1
CROSSREFS
Sequence in context: A280143 A280144 A157779 * A228762 A352078 A046273
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 15 2013
STATUS
approved