OFFSET
1,2
COMMENTS
11^n + n + 1 for n = 84379 is a probable prime.
There are no further terms up to 100000.
MATHEMATICA
Do[ If[PrimeQ[11^m + m + 1 ] , Print[m]], {m, 5000}]
PROG
(PARI) is(n)=ispseudoprime(11^n+n+1) \\ Charles R Greathouse IV, Jun 13 2017
CROSSREFS
KEYWORD
nonn
AUTHOR
Matevz Markovic, Jun 30 2011
STATUS
approved