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%I #14 Nov 15 2019 07:04:40
%S 1,9,33,99,111,141,171,303,393,535,717,777,979,1441,1771,3003,3223,
%T 3663,5335,7447,9009,9339,9999,11011,11811,11911,12121,12321,12621,
%U 13531,14041,14541,14841,17671,18381,18681,19791,30303,31713,32223
%N Lucky numbers that are both palindromic and nonprime.
%H Amiram Eldar, <a href="/A031880/b031880.txt">Table of n, a(n) for n = 1..5436</a> (terms below 10^9)
%Y Intersection of A000959 and A032350.
%K nonn,base
%O 1,2
%A _Patrick De Geest_
%E Name corrected by _Amiram Eldar_, Nov 15 2019