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A254224
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Number of length 7 1..(n+2) arrays with no leading or trailing partial sum equal to a prime and no consecutive values equal
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1
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0, 2, 15, 383, 633, 6490, 18214, 60168, 97089, 296955, 420163, 1046085, 1799943, 3545675, 4664339, 9251052, 11630683, 20703803, 29730723, 47075466, 56991009, 93151404, 122440340, 182865306, 239287220, 341720757, 401640735, 596658745
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OFFSET
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1,2
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COMMENTS
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LINKS
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EXAMPLE
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Some solutions for n=4
..4....6....6....4....1....6....4....4....6....6....6....1....6....1....4....4
..5....2....3....5....3....2....6....2....2....4....2....3....4....3....6....6
..3....4....5....3....4....4....4....4....6....2....6....6....5....2....2....4
..6....2....6....4....2....2....2....2....4....3....4....4....3....4....4....2
..4....6....4....5....6....1....6....4....6....6....6....2....4....2....6....4
..2....5....2....3....2....3....3....5....2....3....4....6....2....4....4....2
..6....1....4....6....4....6....1....1....4....6....6....4....6....6....6....4
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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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