%I #8 Aug 06 2021 07:01:28

%S 1,2,6,8,11,12,13,20,21,22,25,27,30,35,46,48,51,56,58,65,72,77,81,90,

%T 93,100,105,110,116,118,131,132,135,146,151,152,156,158,161,166,167,

%U 172,175,177,181,182,187,198,201,202,215,217,223,228,233,240,243,252,256

%N a(n) = A088339(n)/3.

%Y Cf. A088339.

%K nonn,base

%O 1,2

%A _Ray Chandler_, Oct 06 2003

%E Offset changed to 1 by _Jinyuan Wang_, Aug 06 2021