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%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
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