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%I #6 Mar 09 2015 09:35:19
%S 3,7,9,13,15,19,21,31,39,43,45,51,55,73,79,85,93,99,111,115,123,141,
%T 147,159,163,175,177,195,211,229,237,243,249,253,271,273,279,301,309,
%U 331,345,351,355,363,367,369,373,379,385,399,411,415,427,433
%N Digit '6' 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