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A233701
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Number of (n+2)X(1+2) 0..3 arrays with no increasing sequence of length 3 horizontally, vertically, diagonally downwards or antidiagonally downwards
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1
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164860, 7461298, 328460622, 14427107117, 631613667020, 27642215885625, 1209239039517246, 52896759712898805, 2313778205160272562, 101207126089252434397, 4426874016515242894292, 193634505537387095028700
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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 70 (see link above)
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EXAMPLE
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Some solutions for n=1
..1..1..0....0..3..0....1..3..2....0..0..0....0..3..0....2..1..1....1..0..0
..1..3..2....3..3..0....0..2..0....0..0..3....2..3..0....2..3..3....2..1..3
..0..1..1....1..3..2....1..1..0....2..1..3....2..0..1....1..3..0....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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