A124298 - OEIS

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A124298

Largest prime < 10*a(n-1), a(1)=13.

2

13, 127, 1259, 12589, 125887, 1258847, 12588461, 125884529, 1258845277, 12588452743, 125884527427, 1258845274261, 12588452742583, 125884527425827, 1258845274258259, 12588452742582559, 125884527425825569, 1258845274258255681, 12588452742582556787, 125884527425825567809

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..200

MATHEMATICA

NestList[NextPrime[10#, -1]&, 13, 30] (* Vincenzo Librandi, Jun 28 2014 *)

CROSSREFS

Sequence in context: A016169 A125401 A089763 * A201040 A201550 A361068

Adjacent sequences: A124295 A124296 A124297 * A124299 A124300 A124301

KEYWORD

nonn

AUTHOR

Artur Jasinski, Dec 16 2006

STATUS

approved