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%I #8 Oct 10 2019 22:47:52
%S 81,135,189,225,297,315,375,441,495,525,625,693,735,825,875,1029,1089,
%T 1155,1225,1375,1617,1715,1815,1925,2401,2541,2695,2727,3025,3537,
%U 3773,3993,4077,4235,4545,4887,5157,5895,5929,6363,6655,6795,7575,8145,8253
%N Odd numbers with exactly 4 palindromic prime factors (counted with multiplicity).
%Y Cf. A046317, A046406.
%K nonn,base
%O 0,1
%A _Patrick De Geest_, Jun 15 1998
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