1,1

The next term (a(8)) has 248 digits. [From Harvey P. Dale, Dec 29 2011]

Table of n, a(n) for n=1..7.

Select[10^Range[0, 400] - 59, PrimeQ] (* Harvey P. Dale, Dec 29 2011 *)

(MAGMA) [a: n in [2..250] | IsPrime(a) where a is 10^n-59];

Cf. A108506.

Sequence in context: A114529 A300173 A293619 * A038397 A104349 A091314

Adjacent sequences: A177415 A177416 A177417 * A177419 A177420 A177421

nonn

Vincenzo Librandi, Dec 11 2010

approved