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%I #7 Sep 18 2013 13:35:41
%S 4,6,9,22,33,55,111,121,141,202,303,323,505,515,535,545,626,707,717,
%T 737,939,949,959,1111,1441
%N Digital clock palindromic semiprimes.
%C Palindromic semiprimes possible on a 24-hour digital clock, with no seconds. This is similar to A229107 as semiprimes (A001358) are to prime A000040, except this sequence has no seconds.
%F Digital clock semiprimes (A129336) INTERSECTION Palindromes in base 10 (A002113).
%Y Cf. A001358, A002113, A229107.
%K nonn,base,fini,full
%O 1,1
%A _Jonathan Vos Post_, Sep 14 2013