1,2
Also numbers n such that (59*10^n+13)/9 is prime.
Table of n, a(n) for n=1..10.
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 * A084861 A122498 A132750
Adjacent sequences: A103037 A103038 A103039 * A103041 A103042 A103043
more,nonn
Robert G. Wilson v, Jan 18 2005
approved