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%I #6 Mar 09 2015 09:35:19
%S 3,9,25,27,31,33,37,57,61,75,79,81,91,93,97,115,117,121,123,135,139,
%T 145,151,177,181,211,213,223,231,235,249,253,267,273,277,285,291,303,
%U 315,331,339,349,373,387,399,403,409,421,423,429,441,451
%N Digit '9' 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
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