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A177368
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Count the digits of the previous terms and describe nonzero counts, digits in ascending order, concatenating the count and the digit. Initial term is 9
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10
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9, 19, 1129, 311239, 51222349, 615233141559, 91625324451669, 111826344654689, 14192737475762899, 161112839485864738129, 211132103114951065778149, 202911521231341151167788169, 3038119214314413513697108189, 50461202193174145146107138219, 80541232213214165166127148239
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OFFSET
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1,1
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COMMENTS
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For a Mathematica program, see A177360 (you have to slightly modify it) [From Jasper Mulder (jasper.mulder(AT)planet.nl), Jun 04 2010]
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LINKS
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J. Mulder, Table of n, a(n) for n = 1..25000
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EXAMPLE
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Nine; one nine; 1129=one one, two nines; 311239=three ones, one two, three nines; 51222349=five ones, two twos, two threes, four nines; six ones, five twos, three threes, one four, one five, five nines; etc.
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CROSSREFS
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Cf. A060857, A177359 - A177367
Sequence in context: A248305 A089565 A001154 * A138493 A022513 A156746
Adjacent sequences: A177365 A177366 A177367 * A177369 A177370 A177371
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KEYWORD
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easy,nonn,base
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AUTHOR
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Paolo P. Lava and Giorgio Balzarotti, May 10 2010
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EXTENSIONS
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Terms corrected using values in b-file. - N. J. A. Sloane, Oct 05 2010
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STATUS
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approved
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