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A124290 Largest prime < 10*a[n-1], a[1]=11. 0
11, 109, 1087, 10867, 108649, 1086469, 10864669, 108646667, 1086466657, 10864666531, 108646665307, 1086466653067, 10864666530661, 108646665306581, 1086466653065803, 10864666530658001, 108646665306579997 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

MATHEMATICA

NestList[NextPrime[10#, -1]&, 11, 20]  (* From Harvey P. Dale, Mar 09 2011 *)

CROSSREFS

Cf. A006902, A040016, A120031-A120041.

Sequence in context: A165149 A048346 A054320 * A094703 A144744 A169631

Adjacent sequences:  A124287 A124288 A124289 * A124291 A124292 A124293

KEYWORD

nonn

AUTHOR

Artur Jasinski (grafix(AT)csl.pl), Dec 16 2006

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Last modified February 15 17:13 EST 2012. Contains 205828 sequences.