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A251929
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Number of length n+2 0..2 arrays with the sum of the maximum minus the median of adjacent triples multiplied by some arrangement of +-1 equal to zero
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1
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12, 43, 115, 339, 1047, 3185, 9614, 28997, 87432, 263315, 792052, 2380535, 7151068, 21473847, 64465845, 193491115, 580670152, 1742425277, 5228150762, 15686292673, 47062736335, 141196283037, 423605734627, 1270852497809, 3812631196199
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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) = 10*a(n-1) -43*a(n-2) +112*a(n-3) -212*a(n-4) +314*a(n-5) -371*a(n-6) +366*a(n-7) -292*a(n-8) +172*a(n-9) -78*a(n-10) +2*a(n-11) +25*a(n-12) -16*a(n-13) +12*a(n-14) for n>17
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EXAMPLE
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Some solutions for n=6
..0....2....1....0....0....0....1....0....1....2....1....0....0....2....1....0
..0....2....2....1....2....1....2....0....2....1....2....2....2....2....2....2
..1....1....2....2....1....2....0....2....1....2....2....1....0....2....0....1
..0....0....1....1....2....1....0....1....0....0....2....1....2....2....1....1
..1....0....2....0....1....1....0....0....2....0....0....2....2....1....1....1
..0....2....1....2....2....2....1....1....1....2....0....2....0....0....1....1
..2....2....2....2....1....2....2....0....0....0....2....1....1....1....1....0
..0....1....1....1....1....1....0....2....0....1....2....1....2....2....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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