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A231954
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Number of (n+1)X(5+1) 0..1 arrays with every element equal to some horizontal, vertical, diagonal or antidiagonal neighbor, with top left element zero
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1
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888, 58350, 3292876, 193955142, 11501370840, 681107245458, 40322931224352, 2387295795105696, 141340282653200376, 8368067905547685676, 495432168745975473688, 29332104206310132471746, 1736609792922871327507812
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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 50 (see link above)
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EXAMPLE
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Some solutions for n=2
..0..0..0..0..1..0....0..1..1..0..0..1....0..0..0..1..1..0....0..0..0..1..1..0
..1..1..1..0..0..1....0..1..1..0..1..1....1..0..1..1..0..0....0..0..1..1..0..0
..1..1..1..0..1..0....1..0..1..1..1..1....1..1..1..0..0..0....1..1..1..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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