%I #2 Mar 30 2012 18:53:09
%S 1,1,2,4,7,14,27,54,106,212,420,840,1673,3346,6678,13356,26685,53370,
%T 106686,213372,426638,853276,1706340,3412680,6824940,13649880
%N Third column of A155092.
%K more,nonn
%O 1,3
%A _Mats Granvik_, Jan 20 2009
