OFFSET
1,2
EXAMPLE
If n=0 then 11*n + 911 = 911 (prime).
If n=52 then 11*n + 911 = 1483 (prime).
PROG
(Magma) [n: n in [0..10000] |IsPrime(11*n + 911)] - Vincenzo Librandi, Nov 13 2010
(PARI) is(n)=isprime(11*n+911) \\ Charles R Greathouse IV, Jun 13 2017
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Parthasarathy Nambi, Jul 20 2005
STATUS
approved