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A261754
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Number of (n+1)X(1+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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2, 4, 0, 11, 0, 31, 0, 0, 0, 0, 0, 1028, 0, 0, 0, 12251, 0, 43390, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
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OFFSET
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1,1
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COMMENTS
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Column 1 of A261761.
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LINKS
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Table of n, a(n) for n=1..29.
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EXAMPLE
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Some solutions for n=4
..1..0....1..0....1..1....1..1....1..0....1..0....1..0....1..0....1..1....1..1
..1..0....1..0....1..0....1..0....1..1....1..0....1..1....1..0....1..1....1..1
..1..1....1..0....1..0....1..1....1..1....1..1....1..0....1..0....1..1....1..1
..1..0....1..1....1..1....1..1....1..0....1..1....1..1....1..1....1..1....1..0
..1..1....1..0....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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Cf. A261761.
Sequence in context: A180192 A066529 A052080 * A073451 A078022 A203850
Adjacent sequences: A261751 A261752 A261753 * A261755 A261756 A261757
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KEYWORD
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nonn
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AUTHOR
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R. H. Hardin, Aug 31 2015
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STATUS
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approved
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