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A217452
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Number of n X 3 arrays of the minimum value of corresponding elements and their horizontal and vertical neighbors in a random 0..2 n X 3 array.
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1
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9, 69, 613, 4361, 35067, 271863, 2122623, 16577231, 129398981, 1010161409, 7886865189, 61570433261, 480690831603, 3752745812035, 29297882184787, 228729463311571, 1785699822954649, 13941021624348057, 108838075075791297
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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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EXAMPLE
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Some solutions for n=3:
..0..0..1....2..1..2....0..2..2....0..1..1....2..1..1....2..0..0....2..0..0
..0..0..0....1..1..1....0..0..2....0..0..2....1..1..1....0..0..0....0..0..0
..1..0..0....1..1..2....0..0..2....0..0..2....2..1..2....2..0..1....2..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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