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A276304
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Number of 7Xn 0..2 arrays with no element equal to any value at offset (-2,-1) (-1,1) or (0,-1) and new values introduced in order 0..2.
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1
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365, 710, 14693, 203933, 3861469, 61239977, 1073114625, 17768699385, 303744206293, 5099725153529, 86493302028957, 1458615553542913, 24677069062558769, 416736142368242189, 7044833158816604637
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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 recurrence of order 59 (see link above)
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EXAMPLE
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Some solutions for n=3
..0..1..0. .0..1..2. .0..1..2. .0..1..2. .0..1..0. .0..1..0. .0..1..2
..2..1..2. .0..1..0. .2..1..2. .2..1..0. .2..1..0. .2..1..0. .2..1..0
..2..1..2. .2..1..0. .0..1..2. .2..1..0. .0..1..0. .0..1..2. .2..1..2
..2..1..2. .0..1..0. .2..1..0. .2..1..2. .0..1..2. .0..1..2. .0..1..2
..2..1..2. .0..1..0. .0..1..2. .0..1..2. .2..1..0. .0..1..0. .2..1..0
..2..0..2. .0..1..2. .0..1..2. .2..0..2. .2..1..2. .0..1..0. .0..1..2
..2..1..0. .0..1..0. .0..1..2. .2..1..2. .2..1..0. .2..1..2. .2..1..2
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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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