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A124336
Largest prime < 10*a(n-1), a(1)=23.
1
23, 229, 2287, 22861, 228601, 2285981, 22859783, 228597829, 2285978263, 22859782619, 228597826159, 2285978261587, 22859782615849, 228597826158469, 2285978261584687, 22859782615846861, 228597826158468593
OFFSET
1,1
LINKS
MATHEMATICA
NestList[NextPrime[10 #, -1] &, 23, 30] (* Vincenzo Librandi, Jun 28 2014 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Artur Jasinski, Dec 16 2006
STATUS
approved