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, 2818039240616357827, 28180392406163578069, 281803924061635780589

Offset: 1

Author

Artur Jasinski, Dec 16 2006

Keywords

• nonn

Links

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

Crossrefs

Cf. A124262.

Programs

Mathematica

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