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A116153 Numbers n such that n concatenated with n-1 gives the product of two numbers which differ by 9. 5
13, 41, 653, 2287, 2723, 5491, 23240971, 26823191, 60249661, 1841968537, 2009317771, 3044234903, 3258336353, 8166731261, 9481619237, 1281071245505271100098621541, 1551605670846640136726379653 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..17.

CROSSREFS

Cf. A116147, A116152, A116162, A116284.

Sequence in context: A080186 A287307 A201121 * A116209 A002673 A081301

Adjacent sequences:  A116150 A116151 A116152 * A116154 A116155 A116156

KEYWORD

nonn,base

AUTHOR

Giovanni Resta, Feb 06 2006

STATUS

approved

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Last modified September 21 13:37 EDT 2019. Contains 327253 sequences. (Running on oeis4.)