%I A037036
%S A037036 0,0,0,2,0,2,4,2,0,4,4,10,4,2,4,20,0,2,6,2,4,10,4,16,4,40,6,40,58,4,36,
%T A037036 2,6,10,42,32,6,26,46,8,88,22,12,58,18,56,22,116,60,82,28,130,48,112,
%U A037036 34,56,6,14,28,56,94,2,58,26,60,50,6,20,24,20,36,232,94,70,36,98,16,34
%N A037036 Least k such that 2^n+1-k is a prime.
%e A037036 a(5)=2 because 2^5+1-2=31 that is a prime
%Y A037036 Cf. A016014.
%Y A037036 Sequence in context: A092594 A092741 A144182 this_sequence A055947 A015910 
               A164993
%Y A037036 Adjacent sequences: A037033 A037034 A037035 this_sequence A037037 A037038 
               A037039
%K A037036 nonn
%O A037036 0,4
%A A037036 Felice Russo (felice.russo(AT)katamail.com)
%E A037036 More terms from Erich Friedman (erich.friedman(AT)stetson.edu)