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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 45, 134, 309, 652, 1323, 2634, 5193, 10184, 19911, 38854, 133040, 412527, 1241773, 3701864, 10999194, 32642353, 96825335, 287134794, 851344708, 2523819059, 10866247001, 43994094066, 175538023511, 697843906028
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listen;
history;
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OFFSET
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10,11
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COMMENTS
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We conjecture that all terms are >= 0.
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REFERENCES
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David Applegate, Marc LeBrun and N. J. A. Sloane, Descending Dungeons and Iterated Base-Changing, in "The Mathematics of Preference, Choice and Order: Essays in Honor of Peter Fishburn", edited by Steven Brams, William V. Gehrlein and Fred S. Roberts, Springer, 2009, pp. 393-402.
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LINKS
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Table of n, a(n) for n=10..43.
David Applegate, Marc LeBrun and N. J. A. Sloane, Descending Dungeons and Iterated Base-Changing, arXiv:math/0611293 [math.NT], 2006-2007.
David Applegate, Marc LeBrun, N. J. A. Sloane, Descending Dungeons, Problem 11286, Amer. Math. Monthly, 116 (2009) 466-467.
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CROSSREFS
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Sequence in context: A206209 A098924 A195318 * A156370 A044377 A044758
Adjacent sequences: A131008 A131009 A131010 * A131012 A131013 A131014
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane, Sep 24 2007
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STATUS
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approved
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