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A046338 Palindromes with an even number of prime factors (counted with multiplicity). 3

%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

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Last modified February 17 02:33 EST 2019. Contains 320200 sequences. (Running on oeis4.)