1,1

Also numbers n such that (88*10^n-43)/9 is prime.

Makoto Kamada, Factorizations of 977...773.

Index entries for primes involving repunits.

Do[ If[ PrimeQ[(88*10^n - 43)/9], Print[n]], {n, 0, 10000}]

Sequence in context: A045969 A100513 A127469 this_sequence A074132 A074149 A128443

Adjacent sequences: A103103 A103104 A103105 this_sequence A103107 A103108 A103109

more,nonn

Robert G. Wilson v (rgwv(AT)rgwv.com), Jan 19 2005