1,2

Do[If[PrimeQ[(12^n+11)], Print[n]], {n, 2000}]

Cf. A137652, A137653.

Sequence in context: A027162 A136506 A037447 this_sequence A118908 A139244 A090115

Adjacent sequences: A137651 A137652 A137653 this_sequence A137655 A137656 A137657

nonn

Zak Seidov (zakseidov(AT)yahoo.com), Feb 01 2008