A124263 Largest prime < 10*a(n-1), a(1)=3.

3, 29, 283, 2819, 28183, 281807, 2818043, 28180393, 281803927, 2818039241, 28180392407, 281803924067, 2818039240619, 28180392406171, 281803924061641, 2818039240616359, 28180392406163579, 281803924061635783

Offset

1,1

Links

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

Mathematica

NestList[NextPrime[10#, -1]&, 3, 20] (* Harvey P. Dale, Jun 10 2011 *)

Crossrefs

Cf. A006902, A040016, A120031-A120041.

Sequence in context: A037798 A224754 A162928 * A180828 A026130 A026159

Adjacent sequences: A124260 A124261 A124262 * A124264 A124265 A124266

Keyword

nonn

Author

Artur Jasinski, Dec 16 2006

Status

approved