%I #8 Nov 15 2019 06:28:30
%S 15,25,37,43,87,93,99,105,135,163,195,205,261,267,297,321,361,385,393,
%T 409,415,421,477,489,511,529,553,645,673,679,693,717,729,781,867,897,
%U 1023,1087,1095,1117,1183,1203,1275,1285,1303,1323,1389
%N Lucky numbers with size of gaps equal to 6 (lower terms).
%H Amiram Eldar, <a href="/A031888/b031888.txt">Table of n, a(n) for n = 1..10000</a>
%Y Cf. A000959.
%K nonn
%O 1,1
%A _Patrick De Geest_
|