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A205339
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Number of length n+1 nonnegative integer arrays starting and ending with 0 with adjacent elements unequal but differing by no more than 6
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1
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0, 6, 30, 277, 2370, 22297, 214724, 2133784, 21632020, 223143400, 2333651994, 24689732388, 263770658256, 2841616524516, 30835061022020, 336721385300276, 3697585562072924, 40805356360923728, 452314009660461816
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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=5
..0....0....0....0....0....0....0....0....0....0....0....0....0....0....0....0
..3....1....5....3....6....2....5....2....3....5....5....3....3....3....3....5
..1....3....4....1....4....5....8....4....5....2....9....2....0....7....1....4
..5....9....8....0....2....0....7....3....0....3....8....7....6...10....4....9
..2....6....5....2....3....4....6....5....2....5....4....5....1....5....5....5
..0....0....0....0....0....0....0....0....0....0....0....0....0....0....0....0
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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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