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A250350
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Number of length n arrays x(i), i=1..n with x(i) in i..i+7 and no value appearing more than 2 times
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2
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8, 64, 506, 3935, 30072, 226247, 1681860, 12411486, 91384716, 671639928, 4929577344, 36146749703, 264885341958, 1940349607935, 14210290469006, 104055436365169, 761877093233402, 5577987879867728, 40836880075623272
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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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FORMULA
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Empirical recurrence of order 96 (see link above)
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EXAMPLE
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Some solutions for n=5
..2....3....1....0....2....5....3....5....1....1....5....7....4....6....1....0
..8....8....4....2....8....5....6....7....3....2....5....5....7....4....5....2
..5....4....2....5....9....2....8....8....2....2....6....5....8....5....9....2
..9....8....8....3....7....8...10....4...10....4....8...10....6....3....6...10
.10....4....8....8....5....4....4....8....4....8....4...10....7....9....6...10
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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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