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A249173
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Number of length 2+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, 354572, 920337, 2088652, 4325029, 8248606, 14889789, 25395692, 43971071, 72461790, 114932123, 175804156, 261631751, 378607326, 536343367, 761825382, 1059711829, 1446131636, 1941874063
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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
..4....1....3....3....2....3....1....4....4....1....2....6....2....4....5....2
..5....4....4....3....4....1....6....4....0....2....2....0....2....6....4....4
..0....0....0....1....3....1....6....2....5....1....1....0....1....1....4....3
..1....3....1....3....6....4....0....1....2....6....3....6....2....0....1....2
..3....4....3....4....1....5....5....4....4....0....0....5....2....6....3....6
..3....0....0....3....5....3....4....4....3....6....6....0....0....1....0....0
..5....2....3....4....0....4....6....2....3....5....0....4....5....3....4....4
..4....1....3....3....2....3....1....4....4....1....2....6....2....4....5....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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