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A302527
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Number of nX7 0..1 arrays with every element equal to 1, 2, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
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1
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8, 98, 730, 5942, 128242, 1275348, 16130212, 303355178, 3654880956, 51530586242, 829503866128, 11159474949120, 160761590077504, 2423517947094100, 34130627941733812, 494058647385825910, 7263463498716354406
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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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EXAMPLE
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Some solutions for n=5
..0..0..1..1..1..0..0. .0..0..0..0..1..1..0. .0..0..0..1..0..1..1
..0..1..1..0..1..1..1. .1..1..1..1..0..0..0. .1..1..1..1..0..0..1
..0..1..0..1..1..1..1. .0..1..0..1..0..1..1. .0..0..0..1..0..1..0
..0..0..1..1..1..0..0. .1..0..1..1..0..1..1. .1..0..1..1..0..0..0
..1..1..0..0..1..1..0. .0..1..0..0..1..0..1. .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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