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A249172
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Number of length 1+6 0..n arrays with every seven consecutive terms having four times the sum of some three elements equal to three times the sum of the remaining four
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1
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2, 395, 2258, 11177, 39066, 115437, 287988, 650085, 1339852, 2581121, 4671630, 8093245, 13377140, 21392687, 33096114, 49833787, 73122200, 105132375, 147967210, 204844311, 278931122, 374403885, 495751168, 648915047, 839349796
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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=6
..5....4....3....1....0....4....2....5....4....4....2....1....2....1....4....2
..1....5....6....0....2....5....3....1....6....4....0....4....1....1....3....4
..0....6....6....0....6....4....1....5....2....6....1....4....5....2....2....3
..4....6....2....0....6....1....6....3....5....0....0....1....5....4....0....3
..6....0....4....3....5....3....3....0....3....0....3....2....2....1....1....0
..3....4....4....6....2....6....0....1....4....0....4....6....0....1....1....0
..2....3....3....4....0....5....6....6....4....0....4....3....6....4....3....2
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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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