1,2

Also numbers n such that (52*10^n+11)/9 is prime.

Makoto Kamada, Factorizations of 577...779.

Index entries for primes involving repunits.

Do[ If[ PrimeQ[(52*10^n + 11)/9], Print[n]], {n, 0, 10000}]

Sequence in context: A143701 A147638 A147394 this_sequence A025587 A101498 A027965

Adjacent sequences: A103018 A103019 A103020 this_sequence A103022 A103023 A103024

more,nonn

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