A124338 Largest prime < 10*a(n-1), a(1)=41.

41, 409, 4079, 40787, 407861, 4078609, 40786087, 407860853, 4078608529, 40786085251, 407860852417, 4078608524153, 40786085241529, 407860852415231, 4078608524152277, 40786085241522707, 407860852415227039

Offset

1,1

Links

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

Mathematica

NestList[NextPrime[10 #, -1]&, 41, 30] (* Vincenzo Librandi, Jun 28 2014 *)

Crossrefs

Cf. A006902, A040016, A120031-A120041.

Sequence in context: A274725 A250143 A069594 * A008356 A190421 A178387

Adjacent sequences: A124335 A124336 A124337 * A124339 A124340 A124341

Keyword

nonn

Author

Artur Jasinski, Dec 16 2006

Status

approved