%I A031159
%S A031159 3,9,15,33,51,69,75,129,135,171,195,237,261,285,321,393,429,477,489,
%T A031159 519,537,579,615,621,645,729,741,885,897,927,933,981,993,1011,
%U A031159 1023,1041,1095,1107,1203,1233,1251,1263,1389,1419,1473,1497,1503
%N A031159 Twin lucky numbers (upper terms).
%Y A031159 Cf. A000959, A031158, A031159, A031160.
%Y A031159 Sequence in context: A002127 A061810 A048701 this_sequence A058039 A013581 
               A133997
%Y A031159 Adjacent sequences: A031156 A031157 A031158 this_sequence A031160 A031161 
               A031162
%K A031159 nonn
%O A031159 0,1
%A A031159 Patrick De Geest (pdg(AT)worldofnumbers.com)