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A104306
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Number of perfect rulers of length n having the largest possible difference between consecutive marks that can occur amongst all possible perfect rulers of this length.
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2
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1, 1, 1, 2, 1, 1, 1, 2, 1, 3, 5, 2, 1, 5, 6, 2, 1, 7, 8, 2, 2, 2, 1, 2, 6, 2, 2, 3, 1, 12, 6, 2, 2, 1, 1, 1, 8, 4, 2, 3, 1, 1, 1, 8, 2, 2, 5, 1, 1, 1, 2, 8, 2, 2, 4, 1, 1, 1, 10, 8, 2, 2, 6, 1, 1, 1, 1, 1, 4, 2, 6, 2, 2, 1, 2, 2, 3, 1, 1, 2, 2, 2, 2, 1, 2, 1, 3, 1, 1, 1, 2, 2, 2, 1, 2, 1, 1, 1, 1, 1, 1
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OFFSET
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1,4
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LINKS
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EXAMPLE
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There are 14 perfect rulers of length 12:
[0,1,2,3,8,12], [0,1,2,6,9,12], [0,1,3,5,11,12], [0,1,3,7,11,12],
[0,1,4,5,10,12], [0,1,4,7,10,12], [0,1,7,8,10,12] and their mirror images. The maximum difference between adjacent marks occurs for the 3rd ruler between marks "5" and "11" and for the 7th ruler between marks "1" and "7". Because there are 2 rulers containing the maximum gap between adjacent marks A104305(12)=6 and a(12)=2.
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CROSSREFS
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Cf. A104305, largest possible difference between consecutive marks for a perfect ruler of length n.
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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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