%I #2 Mar 30 2012 17:26:19
%S 0,2,4,6,8,10,12,18,24,26,28,30,36,54,72,78,80,82,84,90,108,162,216,
%T 234,240,242,244,246,252,270,324,486,648,702,720,726,728,730,732,738,
%U 756,810,972,1458,1944,2106,2160,2178,2184,2186,2188,2190,2196,2214,2268
%N Numbers of the form 3^i +/- 3^j.
%K nonn
%O 1,2
%A _Zak Seidov_, Jan 07 2006
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