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A251207
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Number of (n+1)X(5+1) 0..2 arrays with every 2X2 subblock summing to a nonzero multiple of 2
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1
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17152, 489772, 16687766, 667858580, 29868134632, 1430667235078, 71260903869938, 3627694408668076, 186917463235694336, 9695744269718563214, 504822291537301622030, 26339550472767837660896, 1375916534022488327846376
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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 65 (see link above)
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EXAMPLE
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Some solutions for n=1
..1..1..2..1..2..0....2..2..0..2..2..2....1..0..2..2..1..2....0..0..1..2..0..2
..2..0..1..2..1..1....0..2..0..0..2..0....1..0..0..0..1..2....2..2..1..0..2..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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