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A268937
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Number of length-n 0..n arrays with no repeated value unequal to the previous repeated value plus one mod n+1.
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1
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2, 9, 60, 565, 6834, 101192, 1773384, 35904789, 824720230, 21189902503, 602161461276, 18752026405918, 635032992414506, 23234614293228525, 913376056016994576, 38392537083966394681, 1718296926207889973454
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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
..2. .1. .6. .1. .5. .3. .2. .6. .2. .0. .6. .4. .5. .0. .5. .0
..4. .6. .1. .6. .4. .3. .2. .0. .2. .3. .1. .5. .3. .1. .0. .5
..3. .4. .2. .5. .0. .2. .0. .0. .5. .0. .5. .5. .5. .6. .2. .4
..5. .3. .0. .0. .0. .6. .1. .6. .3. .1. .5. .3. .5. .3. .4. .6
..6. .6. .4. .5. .5. .5. .3. .1. .5. .2. .3. .2. .1. .5. .6. .3
..6. .0. .6. .1. .1. .1. .3. .4. .3. .5. .6. .6. .4. .1. .5. .5
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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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