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A297761
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Number of nX7 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 2, 3 or 4 neighboring 1s.
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1
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1, 733, 24801, 759243, 45618455, 2301783905, 108229776807, 5394743533114, 267870723932943, 13164280362488109, 649645311987327236, 32083173143952274627, 1582748891993544903545, 78096927219843019316942
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OFFSET
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1,2
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COMMENTS
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LINKS
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EXAMPLE
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Some solutions for n=3
..1..1..1..0..1..1..0. .0..1..1..1..0..1..1. .1..1..1..0..0..1..0
..0..1..0..1..1..1..1. .1..1..0..0..1..1..1. .1..1..1..0..1..1..1
..0..0..1..1..0..0..0. .0..0..0..1..1..0..0. .0..1..0..1..0..1..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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