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A298136
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Number of nX5 0..1 arrays with every element equal to 2, 3, 5 or 7 king-move adjacent elements, with upper left element zero.
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1
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0, 11, 0, 20, 88, 242, 627, 2604, 8137, 28727, 101137, 350450, 1221711, 4290711, 14968081, 52427734, 183691236, 643194452, 2252416158, 7891461835, 27639419217, 96818359023, 339160988868, 1188063187221, 4161765906348, 14578893452507
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OFFSET
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1,2
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COMMENTS
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Column 5 of A298139.
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LINKS
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R. H. Hardin, Table of n, a(n) for n = 1..210
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EXAMPLE
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Some solutions for n=7
..0..0..1..0..0. .0..0..0..0..0. .0..0..1..0..0. .0..0..1..1..1
..1..0..1..1..0. .0..1..1..1..0. .0..1..0..1..0. .0..1..0..0..1
..1..1..0..0..1. .1..0..0..1..1. .0..1..0..1..0. .0..1..1..1..0
..1..0..1..1..0. .1..0..1..0..1. .1..0..0..1..0. .1..0..0..0..1
..1..0..1..0..0. .1..0..1..0..1. .1..0..0..0..1. .1..0..1..1..1
..1..0..1..0..1. .1..0..1..0..1. .0..1..0..1..0. .0..1..1..0..1
..1..1..0..1..1. .1..1..0..1..1. .0..0..1..0..0. .0..0..0..0..0
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CROSSREFS
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Cf. A298139.
Sequence in context: A186072 A299780 A297873 * A334370 A274851 A075360
Adjacent sequences: A298133 A298134 A298135 * A298137 A298138 A298139
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KEYWORD
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nonn
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AUTHOR
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R. H. Hardin, Jan 13 2018
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STATUS
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approved
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