proposed
approved
proposed
approved
editing
proposed
Composite numbers k such that 2^k-2 and 3^k-3 are both divisible by k and k is not a Carmichael number (A002997).
approved
editing
Amiram Eldar, <a href="/A153513/b153513_2.txt">Table of n, a(n) for n = 1..10000</a> (terms 1..200 from Robert Israel)
reviewed
approved
proposed
reviewed
editing
proposed
Robert Israel, Amiram Eldar, <a href="/A153513/b153513_2.txt">Table of n, a(n) for n = 1..20010000</a>
approved
editing
reviewed
approved