A177368 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.

9, 19, 1129, 311239, 51222349, 615233141559, 91625324451669, 111826344654689, 14192737475762899, 161112839485864738129, 211132103114951065778149, 202911521231341151167788169, 3038119214314413513697108189, 50461202193174145146107138219, 80541232213214165166127148239

Offset: 1

Author

Paolo P. Lava and Giorgio Balzarotti, May 10 2010

Keywords

• easy
• nonn
• base

Comments

For a Mathematica program, see A177360 (you have to slightly modify it) [From Jasper Mulder (jasper.mulder(AT)planet.nl), Jun 04 2010]

Examples

			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.
		

Links

• J. Mulder, Table of n, a(n) for n = 1..25000

Crossrefs

Cf. A060857, A177359 - A177367

Extensions

Terms corrected using values in b-file. - N. J. A. Sloane, Oct 05 2010