%I A031895
%S A031895 63,127,319,463,475,553,613,867,1009,1053,1167,1179,1231,1245,1275,
%T A031895 1303,1471,1485,1611,1675,1723,1749,1869,1977,2079,2251,2335,2355,
%U A031895 2439,2491,2505,2523,2557,2587,2647,2899,3199,3325,3351,3451,3465
%N A031895 Lucky numbers with size of gaps equal to 12 (upper terms).
%Y A031895 Cf. A000959.
%Y A031895 Sequence in context: A044250 A044631 A045136 this_sequence A044314 A044695 
               A044395
%Y A031895 Adjacent sequences: A031892 A031893 A031894 this_sequence A031896 A031897 
               A031898
%K A031895 nonn
%O A031895 1,1
%A A031895 Patrick De Geest (pdg(AT)worldofnumbers.com)