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A285145
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Number of n X n 0..1 arrays with the number of 1's horizontally or antidiagonally adjacent to some 0 one less than the number of 0's adjacent to some 1.
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1
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0, 2, 113, 11574, 4551741, 7586120602, 52105131287528, 1469435682255774972, 168943399492409779855098, 78854409689567939731003347822, 148970519290227262688309540510302237
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OFFSET
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1,2
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COMMENTS
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LINKS
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EXAMPLE
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Some solutions for n=4
..1..0..0..1. .0..1..1..1. .0..1..0..1. .0..1..1..0. .0..1..1..1
..0..1..0..0. .1..1..0..0. .0..1..1..1. .0..0..0..0. .0..1..1..0
..0..1..1..0. .0..1..0..0. .1..0..0..0. .1..1..1..0. .0..0..1..0
..1..1..1..1. .1..0..1..0. .0..0..1..0. .1..1..0..1. .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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