1,2

Also numbers n such that (59*10^n+13)/9 is prime.

Makoto Kamada, Factorizations of 655...557.

Index entries for primes involving repunits.

Do[ If[ PrimeQ[(59*10^n + 13)/9], Print[n]], {n, 0, 10000}]

Sequence in context: A144527 A117880 A027973 this_sequence A084861 A122498 A132750

Adjacent sequences: A103037 A103038 A103039 this_sequence A103041 A103042 A103043

more,nonn

Robert G. Wilson v (rgwv(AT)rgwv.com), Jan 18 2005