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A222567
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Number of nX2 0..2 arrays with no more than floor(nX2/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..2 order
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2
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1, 1, 5, 18, 59, 200, 820, 3014, 11364, 42748, 164652, 627034, 2399454, 9229494, 35487202, 137093302, 528389870, 2048668614, 7920616338, 30777407006, 119302534874, 464420087686, 1804371752146, 7034061387558, 27382292281570
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OFFSET
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1,3
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COMMENTS
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LINKS
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EXAMPLE
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All solutions for n=3
..0..0....0..0....0..0....0..1....0..1
..0..0....0..0....0..0....1..1....0..0
..0..0....1..0....0..1....1..1....0..0
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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