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A111298 Add the digits of the first number to give the second; the first number multiplied by the second gives the third. The third number becomes the first in a new "set" of three. +0
1
15, 6, 90, 9, 810, 9, 7290, 18, 131220, 9, 1180980, 27, 31886460, 36, 1147912560, 36, 41324852160, 36, 1487694677760, 72, 107114016798720, 54, 5784156907130880, 72, 416459297313423360, 72, 29985069406566481920, 99, 2968521871250081710080 (list; graph; listen)
OFFSET

0,1

CROSSREFS

Sequence in context: A064107 A116907 A040214 this_sequence A040213 A097532 A033335

Adjacent sequences: A111295 A111296 A111297 this_sequence A111299 A111300 A111301

KEYWORD

nonn,base

AUTHOR

Chris Dawson (chris(AT)irjsoftware.com), based on an email from Graham Rees, Nov 02 2005

EXTENSIONS

More terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Feb 08 2008

page 1

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.


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