Search: id:A141711
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%I A141711
%S A141711 41041,62745,63973,75361,101101,126217,172081,188461,278545,340561,
%T A141711 449065,552721,656601,658801,670033,748657,825265,838201,852841,997633,
%U A141711 1033669,1050985,1082809,1569457,1773289,2100901,2113921,2433601
%N A141711 Carmichael numbers with more than 3 prime factors.
%C A141711 Sequence A087788 gives Carmichael numbers with exactly 3 prime factors; 
               since they cannot have less (cf. references in A002997), this sequence 
               is the complement of A087788 in A002997.
%F A141711 A141711 = A002997 \ A087788 = A074379 U A112428 U A112429 U A112430 U 
               A112431 U A112432 U ...
%e A141711 a(17)=825265 is the least Carmichael number having more than 4 divisors, 
               thus the sequence differs from A074379 only from that term on.
%o A141711 (PARI) A2997=readvec("b002997.gp"); A002997(n)=A2997[n]; for( n=1,100, 
               omega( A002997(n) ) > 3 & print1( A002997(n)", "))
%Y A141711 Cf. A002997, A087788, A074379, A112428-A112432, A006931.
%Y A141711 Sequence in context: A133863 A033532 A047828 this_sequence A074379 A027577 
               A128150
%Y A141711 Adjacent sequences: A141708 A141709 A141710 this_sequence A141712 A141713 
               A141714
%K A141711 nonn
%O A141711 1,1
%A A141711 M. F. Hasler (Maximilian.Hasler(AT)gmail.com), Jul 01 2008

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