A032673 - OEIS

%I #8 Mar 09 2015 09:35:19

%S 3,5,11,15,27,29,33,35,41,51,59,63,69,71,89,93,95,101,105,107,117,123,

%T 147,155,167,179,183,189,197,201,203,209,219,231,233,245,249,251,261,

%U 263,275,281,285,291,303,309,323,329,339,357,365,369,387,389,395

%N Digit '1' concatenated with a(n) is a lucky number.

%Y Cf. A000959.

%K nonn,base,less

%O 1,1

%A _Patrick De Geest_, May 15 1998