Search: id:A036539
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%I A036539
%S A036539 1,1,4,5,11,22,44,89,178,351,702,1413,2817,5634,11273,22542,45077
%N A036539 a(n) enumerates integers of binary order n (i.e. those between 2^(n-1) 
               and 2^n, see A029837) which have number of divisors a power of 2.
%C A036539 Increase is exponential with factor near 2.
%e A036539 In binary order zone g[ x ]=5 the following 11 numbers have number of 
               divisors which are powers of 2:17,19,21,22,23,24,26,27,29,30,31 with 
               2,2,4,4,2,8,4,4,2,8,2 divisors resp.
%Y A036539 A037992.
%Y A036539 Sequence in context: A001350 A077238 A000286 this_sequence A000769 A050831 
               A056799
%Y A036539 Adjacent sequences: A036536 A036537 A036538 this_sequence A036540 A036541 
               A036542
%K A036539 nonn
%O A036539 1,3
%A A036539 Labos E. (labos(AT)ana.sote.hu)

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