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A164807
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a(n) = smallest number which has in its Spanish name the letter "t" in the n-th position,or -1 if no such number exists.
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0
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3, -1, 14, 4, 20, 30, 23, 50, 17, 24, 53, 34, 44, 54, 117, 124, 153, 134, 144, 154, 253, 234, 244, 254, 354, 444, 454
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,1
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COMMENTS
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a(1)=Tres, a(3)=caTorce, a(4)=cuaTro
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LINKS
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CROSSREFS
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KEYWORD
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word,sign
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AUTHOR
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STATUS
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approved
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