%I #2 Sep 29 2006 03:00:00

%S 2,3,5,23,8388581

%N Primes in sequence a(1)=2, a(n+1)=2^a(n)-3^(n-1).

%F a(1)=2, a(n+1)=2^a(n)-3^(n-1)

%e a(1)=2, a(2)=2^a(1)-3^0=2^2-3^0=3

%Y Cf. A075883.

%K hard,nonn

%O 1,1

%A Parviz Afereidoon (afereidoon(AT)gmail.com), Apr 13 2006