%I A117696
%S A117696 2,3,5,23,8388581
%N A117696 Primes in sequence a(1)=2, a(n+1)=2^a(n)-3^(n-1).
%F A117696 a(1)=2, a(n+1)=2^a(n)-3^(n-1)
%e A117696 a(1)=2, a(2)=2^a(1)-3^0=2^2-3^0=3
%Y A117696 Cf. A075883.
%Y A117696 Sequence in context: A053708 A137070 A084730 this_sequence A024774 A068543 
               A064026
%Y A117696 Adjacent sequences: A117693 A117694 A117695 this_sequence A117697 A117698 
               A117699
%K A117696 hard,nonn
%O A117696 1,1
%A A117696 Parviz Afereidoon (afereidoon(AT)gmail.com), Apr 13 2006