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A231414
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Number of (n+1)X(2+1) 0..2 arrays with no element equal to a strict majority of its horizontal, diagonal and antidiagonal neighbors, with values 0..2 introduced in row major order
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1
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71, 1032, 15125, 221445, 3245016, 47557773, 697029563, 10216062982, 149732672641, 2194570662617, 32164925750976, 471428170136401, 6909529986297263, 101270156563366358, 1484275287919713541
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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) -28*a(n-2) -119*a(n-3) +373*a(n-4) +134*a(n-5) -268*a(n-6) -200*a(n-7)
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EXAMPLE
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Some solutions for n=3
..0..1..1....0..1..0....0..0..1....0..1..2....0..1..0....0..1..0....0..1..2
..0..2..0....2..0..2....1..1..1....2..0..0....0..2..1....2..2..0....0..0..1
..2..0..0....1..1..1....0..2..0....2..1..2....1..2..1....0..0..1....2..2..2
..2..1..2....0..0..1....1..0..1....1..2..0....0..1..2....2..1..2....1..0..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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