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Numbers with exactly 3 palindromic prime factors (counted with multiplicity).
2

%I #11 Aug 14 2024 13:12:32

%S 8,12,18,20,27,28,30,42,44,45,50,63,66,70,75,98,99,105,110,125,147,

%T 154,165,175,231,242,245,275,343,363,385,404,524,539,604,605,606,724,

%U 764,786,847,906,909,1010,1086,1146,1179,1252,1310,1331,1359,1412,1414

%N Numbers with exactly 3 palindromic prime factors (counted with multiplicity).

%H Andrew Howroyd, <a href="/A046369/b046369.txt">Table of n, a(n) for n = 1..1000</a>

%Y Intersection of A033620 and A014612.

%Y Cf. A046401.

%K nonn,base

%O 1,1

%A _Patrick De Geest_, Jun 15 1998

%E Offset changed by _Andrew Howroyd_, Aug 14 2024