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A229390
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Number of nX6 0..3 arrays of the sum of the corresponding element, the element to the east and the element to the south in a larger (n+1)X7 0..1 array
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1
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1912, 546752, 84210828, 11156280332, 1451228983308, 187243393024012, 24062262212427788, 3086056460257853452, 395404788283905933324, 50636744827896225333260, 6483098981333181772333068
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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) = 193*a(n-1) -8384*a(n-2) +8320*a(n-3) -24704*a(n-4) +1073152*a(n-5) -1048576*a(n-6) for n>9
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EXAMPLE
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Some solutions for n=2
..1..1..1..1..1..2....1..1..1..2..2..2....1..0..1..2..1..3....1..1..1..1..2..3
..0..2..3..1..0..2....0..1..1..1..1..1....0..1..1..1..2..3....1..1..0..1..3..3
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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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