%I #5 Mar 30 2012 18:52:04
%S 0,1,1,3,4,5,3,7,2,9,5,11,6,13,7,15,4,17,9,19,80,21,11,23,6,25,13,27,
%T 14,29,15,31,8,33,17,35,36,37,19,39,10,41,21,43,22,45,23,47,12,49,25,
%U 51,104,53,27,55,14,57,29,59
%N A165342(3n)/3.
%F a(n) = A166720(n)/3.
%F a(2n+1) = 2n+1.
%K nonn
%O 0,4
%A _Paul Curtz_, Nov 27 2009
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