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A208712
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Number of 5Xn 0..1 arrays with new values 0..1 introduced in row major order and no element equal to more than two of its immediate leftward or upward or right-upward antidiagonal neighbors
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1
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16, 512, 9604, 204020, 4226368, 87985748, 1830045552, 38070302740, 791949216708, 16474443378336, 342707611610988, 7129134738677660, 148302981848252912, 3085055246536395480, 64176496980568384684, 1335023990202619369508
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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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FORMULA
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Empirical: a(n) = 17*a(n-1) +95*a(n-2) -269*a(n-3) -1372*a(n-4) +1500*a(n-5) +6585*a(n-6) -5267*a(n-7) -11175*a(n-8) +10357*a(n-9) +1757*a(n-10) -3001*a(n-11) +237*a(n-12) +207*a(n-13) -30*a(n-14) for n>17
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EXAMPLE
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Some solutions for n=4
..0..0..1..0....0..0..1..1....0..1..0..0....0..0..1..0....0..0..1..0
..0..0..1..1....0..1..0..0....1..1..1..0....0..1..1..1....1..1..1..1
..1..0..0..0....0..1..1..1....1..0..1..1....1..0..1..1....0..1..0..1
..0..1..0..1....1..0..0..1....0..1..0..1....1..1..0..1....0..1..0..0
..0..0..1..0....0..1..1..0....0..0..1..1....1..1..0..1....0..1..1..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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