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A171076
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Total number of balls in room in variant of the tennis ball problem (cf. A171074);
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1
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OFFSET
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1,1
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COMMENTS
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Note that A051133 yields the totals of all C(2n, n) ball sets and A005893 and A090288 are the respective totals of impossible combinations given the rules.
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REFERENCES
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David Scambler, Just for fun, more tennis balls, Posting to the Sequence Fans Mailing List, Aug 25 2010.
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LINKS
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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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