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A299080
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Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 3, 4 or 7 king-move adjacent elements, with upper left element zero.
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1
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64, 7181, 175286, 5966905, 209649724, 7216923643, 250915355467, 8769918141746, 306309018507458, 10700121813906426, 373936136661714476, 13068516356658656411, 456719559953077301270, 15961823564161742473972
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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=3
..0..0..0..1..1..1..1. .0..0..0..0..0..1..1. .0..0..1..1..1..0..1
..0..0..1..0..1..1..0. .1..1..1..1..1..0..1. .1..1..1..1..0..1..1
..1..1..1..1..1..1..1. .0..1..1..0..0..1..0. .0..0..0..0..0..0..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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