%I #11 Jan 13 2023 04:02:08

%S 109,163,811,2269,31381059691,22876792455043,4052555153018976349,

%T 7395104114874202511988394360121831439224179537192802989,

%U 507528786056415600719754159741696356908742250191663887263627442114963

%N Primes of the form 3^n + 3^4 + 1.

%C The following terms are too large to be displayed here, but the exponents n can be found in sequence A168170. [_M. F. Hasler_, Nov 25 2009]

%F a(n) = 3^A168170(n) + 3^4 + 1. [_M. F. Hasler_, Nov 25 2009]

%t Select[3^Range[150]+82,PrimeQ] (* _Harvey P. Dale_, Dec 18 2011 *)

%K nonn

%O 1,1

%A _Roger L. Bagula_, Mar 01 2005

%E Edited by _M. F. Hasler_, Nov 25 2009