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A291906
Numbers k such that (29^k + 1)/30 is a prime.
0
7, 112153, 151153
OFFSET
1,1
COMMENTS
Only the first term is proved to be a prime (so far). The rest correspond to probable primes.
a(2) from Lelio R. Paula.
LINKS
P. Bourdelais, A Generalized Repunit Conjecture, NMBRTHRY, 25 Jun 2009.
Henri & Renaud Lifchitz, PRP Records
CROSSREFS
Sequence in context: A158816 A173839 A122000 * A090769 A013842 A247791
KEYWORD
nonn,more,bref
AUTHOR
Paul Bourdelais, Sep 05 2017
STATUS
approved