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A259249
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Number of (n+1)X(7+1) 0..1 arrays with each 2X2 subblock having clockwise pattern 0000 0011 or 0111
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1
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1353, 15613, 159168, 1803859, 18970267, 211569948, 2259371001, 24946035357, 268635598788, 2948447364239, 31900157480147, 348917447759080, 3785118935837593, 41318554169121573, 448913396152129472
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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 54 (see link above)
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EXAMPLE
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Some solutions for n=3
..0..1..1..1..1..1..0..0....1..1..0..0..1..0..0..1....0..1..0..0..1..0..1..0
..0..1..0..0..0..1..0..0....0..1..1..1..1..1..1..1....0..1..1..1..1..1..1..1
..1..1..1..1..1..1..1..1....0..1..0..0..0..1..0..0....0..1..0..1..0..0..0..1
..1..0..0..0..1..0..0..0....1..1..1..1..1..1..1..1....0..1..1..1..0..0..0..1
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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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