|
%I #13 Oct 16 2019 11:27:58
%S 378,576,1236,3018,7506,9090,18396,26250,27966,28098,28428,31068,
%T 32190,32586,34500,35490,40506,42156,46446,47700,48888,50670,53376,
%U 55290,55818,58788,65256,65718,68226,73308,74760,75618,77730,86178
%N Values of m such that N=(am+1)(bm+1)(cm+1) is a 3-Carmichael number (A087788), where a,b,c = 1,2,11.
%C am+1, bm+1, cm+1 are primes and am | (N-1), bm | (N-1), cm |(N-1).
%D Harvey Dubner (harvey(AT)dubner.com), personal communication, Jun 27 2001.
%H Amiram Eldar, <a href="/A064242/b064242.txt">Table of n, a(n) for n = 1..10000</a>
%t CarmichaelNbrQ[n_] := ! PrimeQ@ n && Mod[n, CarmichaelLambda@ n] == 1; Select[ Range@ 88000, PrimeQ[# + 1] && PrimeQ[2# + 1] && PrimeQ[11# + 1] && CarmichaelNbrQ[(# + 1)(2# + 1)(11# + 1)] &] (* _Robert G. Wilson v_, Aug 23 2012 *)
%Y Cf. A087788.
%K nonn
%O 1,1
%A _N. J. A. Sloane_, Sep 23 2001
%E Offset corrected by _Amiram Eldar_, Oct 16 2019
|
