login
Palindromes with exactly 5 palindromic prime factors (counted with multiplicity).
1

%I #11 Nov 06 2015 04:08:46

%S 252,616,5445,5775,8888,48884,268862,448844,526625,577775,1478741,

%T 2468642,3498943,5304035,13577531,17377371,22666622,29244292,33999933,

%U 124666421,151202151,1144664411,36466266463,334826628433,534874478435,592723327295,597593395795

%N Palindromes with exactly 5 palindromic prime factors (counted with multiplicity).

%H Lars Blomberg, <a href="/A046379/b046379.txt">Table of n, a(n) for n = 1..44</a>, terms < 10^16.

%e The palindrome 151202151 is a term since it has 5 factors 3^2 101 181 919, all palindromic.

%Y Cf. A046331.

%K nonn,base

%O 1,1

%A _Patrick De Geest_, Jun 15 1998

%E More terms from _Lars Blomberg_, Nov 06 2015