%I #11 Aug 14 2024 13:12:28
%S 16,24,36,40,54,56,60,81,84,88,90,100,126,132,135,140,150,189,196,198,
%T 210,220,225,250,294,297,308,315,330,350,375,441,462,484,490,495,525,
%U 550,625,686,693,726,735,770,808,825,875,1029,1048,1078,1089,1155,1208
%N Numbers with exactly 4 palindromic prime factors (counted with multiplicity).
%H Andrew Howroyd, <a href="/A046370/b046370.txt">Table of n, a(n) for n = 1..1000</a>
%Y Intersection of A033620 and A014613.
%Y Cf. A046402.
%K nonn,base
%O 1,1
%A _Patrick De Geest_, Jun 15 1998
%E Offset changed by _Andrew Howroyd_, Aug 14 2024