%I #2 Mar 30 2012 18:39:28
%S 1,3,4,5,7,9,10,12,13,15,17,18,19,21,22,23,25,27,28,30,31,32,34,36,37,
%T 38,40,41,43,44,45,47,49,50,52,53,54,56,58,59,61,63,64,66,68,69,71,72,
%U 73,75,76,77,79,81,82,84,85,86,88,90,91,93,94,96,98,99,100,102,103,105
%N a(n)=sum(k=1,n,A000002(2*k-1))
%K nonn
%O 1,2
%A _Benoit Cloitre_, Feb 07 2009