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A261755
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Number of (n+1)X(2+1) 0..1 arrays with each row and column prime, read as a binary number with top and left being the most significant bits.
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0
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4, 20, 19, 100, 165, 353, 885, 3548, 8661, 21544, 78052, 265612, 786316, 2171560, 6063182, 26625997, 98070255, 308244775
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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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Some solutions for n=4
..1..0..1....1..1..1....1..1..1....0..1..1....0..1..1....1..0..1....1..1..1
..1..0..1....0..1..1....1..0..1....1..0..1....1..1..1....1..0..1....1..0..1
..1..1..1....1..1..1....1..0..1....0..1..1....0..1..1....1..1..1....1..1..1
..0..1..0....1..0..1....0..1..0....1..1..1....1..1..1....1..1..1....1..1..1
..1..1..1....1..1..1....1..1..1....1..1..1....1..1..1....1..1..1....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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