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A293804
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Number of multisets of nonempty words with a total of n letters over nonary alphabet containing the ninth letter such that within each prefix of a word every letter of the alphabet is at least as frequent as the subsequent alphabet letter.
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2
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1, 10, 101, 762, 5644, 37759, 249346, 1575028, 9882928, 60748286, 372625221, 2265134302, 13781508870, 83609540368, 508633993673, 3095996847792, 18917973769416, 115888594051965, 713122785565957, 4404107814340191, 27330754066244314, 170323622877898732
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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9,2
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LINKS
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FORMULA
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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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