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A270860
Least Quasi-Carmichael number with n prime factors.
0
35, 165, 6545, 179998, 7509579, 850253030
OFFSET
2,1
EXAMPLE
6545 = 5*7*11*17 and 12, 14, 18, 24 all divide 6552.
PROG
(Perl) use ntheory ":all"; my $f=2; forcomposites { say $f++, " $_" if scalar(factor($_))==$f && is_quasi_carmichael($_); } 1e9; # Dana Jacobsen, Apr 27 2017
CROSSREFS
Cf. A257750 (Quasi-Carmichael numbers).
Sequence in context: A260867 A015219 A195545 * A228453 A327651 A319042
KEYWORD
nonn,more,hard
AUTHOR
EXTENSIONS
a(7) from Dana Jacobsen, Apr 04 2016
STATUS
approved