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A113055 Beginning with 5, primes of the form: least multiple of the previous term followed by a 9. Beginning with 5, a(n) is the least prime of the form k*a(n-1)*10 +9. 1
5, 59, 599, 29959, 6890579, 551246329, 27562316459, 551246329189, 104736802545919, 1047368025459199, 73315761782143939, 2932630471285757569, 1114399579088587876229, 22287991581771757524589 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Harvey P. Dale, Table of n, a(n) for n = 1..313

MATHEMATICA

lp[n_]:=Module[{k=1}, While[!PrimeQ[10*k*n+9], k++]; 10*k*n+9]; NestList[ lp, 5, 15] (* Harvey P. Dale, Feb 01 2015 *)

CROSSREFS

Sequence in context: A036947 A099151 A243219 * A020468 A093946 A249519

Adjacent sequences:  A113052 A113053 A113054 * A113056 A113057 A113058

KEYWORD

base,nonn

AUTHOR

Amarnath Murthy, Jan 03 2006

EXTENSIONS

More terms from Joshua Zucker, Jan 11 2006

STATUS

approved

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Last modified February 27 22:43 EST 2020. Contains 332312 sequences. (Running on oeis4.)