%I A053637
%S A053637 1,1,2,2,4,6,10,16,29,52,94,171,316,586,1093,2048,3856,7282,13798,
%T A053637 26215,49933,95326,182362,349526,671089,1290556,2485514,4793491,
%U A053637 9256396,17895698,34636834,67108864,130150525,252645136,490853406
%N A053637 Ceiling(2^(n-1)/n).
%Y A053637 Sequence in context: A055389 A163733 A084202 this_sequence A000016 A060553 
               A032307
%Y A053637 Adjacent sequences: A053634 A053635 A053636 this_sequence A053638 A053639 
               A053640
%K A053637 nonn
%O A053637 1,3
%A A053637 N. J. A. Sloane (njas(AT)research.att.com), Mar 23 2000