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A249288
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Number of length n+3 0..6 arrays with no four consecutive terms having the sum of any three elements equal to three times the fourth
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1
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2070, 12600, 76856, 469072, 2863158, 17477172, 106687006, 651265876, 3975630136, 24269116850, 148150208272, 904379542250, 5520764471064, 33701382275398, 205729331323368, 1255870097060206, 7666430906270386, 46799555928424622
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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
..3....4....2....5....2....2....5....0....1....5....3....2....0....4....4....0
..2....5....5....2....4....1....1....3....2....0....0....4....4....4....3....6
..4....3....5....5....2....2....0....1....2....1....4....0....4....1....4....6
..1....1....1....0....3....1....5....6....1....1....3....1....6....2....6....2
..5....2....2....3....4....3....4....3....6....4....4....6....6....4....5....3
..3....4....3....6....4....0....0....5....0....5....6....5....1....4....3....3
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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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