%I #8 Feb 23 2013 14:10:56
%S 10,11,12,13,14,15,16,17,18,19,21,23,25,31,34,103,201,10011,
%T 1111111111111111111
%N 19 in base 19-n.
%t Append[Table[FromDigits[IntegerDigits[19, 19 - n]], {n, 0, 17}], FromDigits[Table[1, {19}]]] (* _T. D. Noe_, Feb 23 2013 *)
%K fini,nonn,base,full
%O 0,1
%A _N. J. A. Sloane_.