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A275129
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Number of nX6 0..2 arrays with no element equal to any value at offset (-2,-2) (-1,0) or (-1,1) and new values introduced in order 0..2.
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2
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122, 1024, 2607, 11092, 71576, 473185, 3146574, 20970214, 139845553, 930732169, 6190918966, 41214051338, 274484938098, 1827596183195, 12167228578454, 81014307245606, 539449424460354, 3591778777900364, 23914435700214624
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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 67 (see link above)
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EXAMPLE
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Some solutions for n=4
..0..0..0..1..1..1. .0..0..1..1..1..2. .0..0..1..2..1..2. .0..0..0..1..1..2
..1..1..2..0..2..0. .2..2..0..0..0..1. .1..2..0..0..0..1. .1..1..2..2..0..1
..2..0..1..1..1..2. .0..1..2..1..2..0. .0..1..2..2..2..0. .0..0..1..1..2..2
..1..2..0..0..0..1. .2..0..0..0..1..2. .2..0..0..1..1..1. .2..2..0..0..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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