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A048547
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a(n) is the smallest value of m such that A002378(m), the m-th oblong number, contains exactly n 9's.
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10
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9, 31, 890, 2234, 14131, 30331, 173031, 969520, 9958890, 31617890, 360542549, 547631234, 3316547890, 17318486343, 114017542334, 356363452109, 3065925634968
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OFFSET
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1,1
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LINKS
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EXAMPLE
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a(3) = 890 since A002378(890) = 792990;
a(4) = 2234 since A002378(2234) = 4992990, etc.
(End).
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CROSSREFS
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KEYWORD
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nonn,base,more
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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