%I #8 Oct 10 2019 00:32:30
%S 3,31,37,173,179,293,353,383,389,397,409,467,491,547,691,733,761,829,
%T 883,911,953,967,1129,1259,1279,1291,1307,1319,1373,1399,1433,1447,
%U 1459,1531,1543,1607,1627,1669,1693,1697,1709,1777,1787,1811,1871,1907
%N Numbers n such that n is a prime and sum of all lucky numbers <= n is a prime.
%Y Cf. A013917, A000959.
%K nonn
%O 1,1
%A _Patrick De Geest_, Jun 15 1998