

A185073


Numbers n such that (34^n  1)/33 is prime.


1




OFFSET

1,1


LINKS

Table of n, a(n) for n=1..5.
H. Dubner, Generalized repunit primes, Math. Comp., 61 (1993), 927930.
H. Lifchitz, Mersenne and Fermat primes field
P. Bourdelais,A Generalized Repunit Conjecture


MATHEMATICA

Select[Prime[Range[100]], PrimeQ[(34^#1)/33]&]


PROG

(PARI) isok(n) = isprime((34^n1)/33); \\ Michel Marcus, Mar 13 2016
(PARI) lista(nn) = for(n=1, nn, if(ispseudoprime((34^n  1)/33), print1(n, ", "))); \\ Altug Alkan, Mar 13 2016


CROSSREFS

Cf. A028491, A004061, A004062, A004063, A004064, A004023, A005808, A016054, A006032, A006033, A006034, A006035, A098438, A127995A128005.
Sequence in context: A242562 A201357 A220551 * A185193 A066457 A203515
Adjacent sequences: A185070 A185071 A185072 * A185074 A185075 A185076


KEYWORD

hard,more,nonn


AUTHOR

Robert Price, Mar 10 2012


EXTENSIONS

a(5)=125101 corresponds to a probable prime discovered by Paul Bourdelais, Nov 20 2017


STATUS

approved



