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Lucas-Carmichael numbers with 3 prime factors.
14

%I #16 Aug 05 2013 01:22:52

%S 399,935,2015,2915,4991,5719,7055,12719,20705,20999,22847,46079,60059,

%T 63503,67199,76751,80189,88559,90287,104663,120581,152279,155819,

%U 196559,214199,230159,388079,482143,663679,676799,709019,741311,761039,776567,880319,966239

%N Lucas-Carmichael numbers with 3 prime factors.

%H Donovan Johnson, <a href="/A216925/b216925.txt">Table of n, a(n) for n = 1..1000</a>

%e a(1) = 399 = 3*7*19

%Y Cf. A006972 (Lucas-Carmichael numbers), A216926, A216927, A217002, A217003, A217091.

%K nonn

%O 1,1

%A _Tim Johannes Ohrtmann_, Sep 20 2012