%I #5 Mar 31 2012 13:22:15

%S 0,1,2,3,4,5,6,7,8,9,6,7,8,9,10,11,12,13,14,15,12,13,14,15,16,17,18,

%T 19,20,21,18,19,20,21,22,23,24,25,26,27,24,25,26,27,28,29,30,31,32,33,

%U 30,31,32,33,34,35,36,37,38,39,36,37,38,39,40,41,42,43,44,45,42,43,44,45

%N Map n = Sum c_i 10^i to a(n) = Sum c_i 6^i.

%K nonn,base

%O 0,3

%A _N. J. A. Sloane_.

%E More terms from _Erich Friedman_.