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A259960
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Number of (n+2)X(6+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000000 00000001 or 00001001
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1
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1884, 8964, 64891, 410928, 2680028, 17818241, 116786951, 764080109, 5022583984, 33001259193, 216587128266, 1421771125112, 9335402267913, 61293735086483, 402419214454459, 2642049905522258, 17346319866667679, 113887504201096832
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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 71 (see link above)
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EXAMPLE
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Some solutions for n=3
..0..0..0..0..0..0..0..0....0..0..0..0..1..0..0..1....0..1..0..0..0..1..0..0
..0..0..0..0..0..0..0..0....0..0..1..0..0..0..1..0....0..0..0..0..0..0..0..0
..1..0..0..0..0..1..0..0....0..0..0..0..0..0..0..0....0..0..0..0..0..0..1..0
..0..0..0..0..0..0..0..1....0..0..0..0..0..0..0..1....0..1..0..0..0..0..0..0
..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0....1..0..0..1..0..0..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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