%I
%S 4,6,9,22,33,55,77,88,111,121,141,161,202,232,262,303,323,393,414,424,
%T 444,454,484,505,515,525,535,545,565,585,626,636,666,676,686,707,717,
%U 737,767,808,818,838,858,868,878,898,939,949,959,979,989,999,1111,1441
%N Palindromes with an even number of prime factors (counted with multiplicity).
%H John Cerkan, <a href="/A046338/b046338.txt">Table of n, a(n) for n = 1..10000</a>
%Y Cf. A028260, A046337.
%K nonn,base
%O 1,1
%A _Patrick De Geest_, Jun 15 1998
