OFFSET
1,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..6
MATHEMATICA
Select[12^Range[3000]-11^Range[3000], PrimeQ]
PROG
(Magma) [ a: n in [0..300] | IsPrime(a) where a is 12^n-11^n ]
CROSSREFS
KEYWORD
nonn,more,bref
AUTHOR
Vincenzo Librandi, Nov 21 2011
STATUS
approved