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%I A064262 #13 Oct 17 2019 05:57:58
%S A064262 330,1656,1758,6960,11958,14406,27258,30318,30930,31236,37356,40110,
%T A064262 43986,44088,50820,53268,55818,63366,65100,67650,71526,74586,81930,
%U A064262 90906,93150,94476,98250,99678,109470,119568,121710,129768,135276,141906,146190,147516,155166
%N A064262 Values of m such that N=(am+1)(bm+1)(cm+1) is a 3-Carmichael number (A087788), where a,b,c = 1,2,51.
%C A064262 am+1, bm+1, cm+1 are primes and am | (N-1), bm | (N-1), cm |(N-1).
%D A064262 Harvey Dubner (harvey(AT)dubner.com), personal communication, Jun 27 2001.
%H A064262 Amiram Eldar, <a href="/A064262/b064262.txt">Table of n, a(n) for n = 1..10000</a>
%t A064262 CarmichaelNbrQ[n_] := ! PrimeQ@ n && Mod[n, CarmichaelLambda[n]] == 1; Select[ Range@ 9000, PrimeQ[# + 1] && PrimeQ[2# + 1] && PrimeQ[51# + 1] && CarmichaelNbrQ[(# + 1)(2# + 1)(51# + 1)] &] (* _Robert G. Wilson v_, Aug 23 2012 *)
%Y A064262 Cf. A087788.
%K A064262 nonn
%O A064262 1,1
%A A064262 _N. J. A. Sloane_, Sep 23 2001
%E A064262 Offset corrected and more terms added by _Amiram Eldar_, Oct 17 2019

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