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A295210
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Number of nX5 0..1 arrays with each 1 horizontally or vertically adjacent to 2 or 3 1s.
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1
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1, 14, 102, 916, 9536, 85215, 775547, 7213161, 66719868, 617206899, 5712427735, 52846385777, 488921918232, 4523682017995, 41853575267115, 387232937869441, 3582725192257390, 33147778088300382, 306687046141834012
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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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FORMULA
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Empirical recurrence of order 78 (see link above)
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EXAMPLE
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Some solutions for n=6
..1..1..0..0..0. .1..1..1..1..1. .0..1..1..1..1. .1..1..1..1..1
..1..1..0..0..0. .1..1..0..1..1. .0..1..0..0..1. .1..0..0..1..1
..1..0..1..1..1. .1..0..0..1..1. .0..1..1..1..1. .1..1..1..1..0
..1..1..1..0..1. .1..0..0..1..1. .0..1..0..0..0. .1..0..1..1..0
..0..0..1..1..1. .1..1..0..1..0. .0..1..1..1..0. .1..1..0..0..0
..0..0..1..1..1. .1..1..1..1..0. .0..1..1..1..0. .1..1..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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