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A222574
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Number of 2Xn 0..2 arrays with no more than floor(2Xn/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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1
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2, 1, 5, 10, 25, 128, 292, 1318, 3640, 14788, 42332, 172442, 496654, 2013238, 5919842, 23613110, 70986662, 279047430, 854262098, 3317468446, 10317918394, 39625082182, 125013898578, 475235749926, 1518534868610, 5720236047374
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OFFSET
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1,1
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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..1....0..0..0....0..0..0....0..1..1
..0..0..1....0..0..0....0..0..0....1..0..0....1..1..1
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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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