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%I #14 Jan 29 2018 10:48:48
%S 1,2,3,4,5,6,7,8,9,10,12,14,15,16,18,20,21,24,25,28,30,35,36,40,42,45,
%T 48,50,60,70,72,75,80,84,90,100,105,120,140,144,150,180,200,210,240,
%U 300,360,420,600,720
%N Arises in cyclotomic integers, fusion categories and subfactors.
%C Appears in Calegari, proof of 4.2.5. Lemma, p. 12.
%H Frank Calegari, Scott Morrison, Noah Snyder, <a href="http://arxiv.org/abs/1004.0665">Cyclotomic integers, fusion categories, and subfactors</a>, arXiv:1004.0665 [math.NT], 2010.
%H J. H. Conway and A. J. Jones, <a href="http://matwbn.icm.edu.pl/ksiazki/aa/aa30/aa3033.pdf">Trigonometric Diophantine equations (on vanishing sums of roots of unity)</a>, Acta Arith. XXX (1976) 229-240. MR0422149.
%Y Cf. A048669.
%K fini,full,nonn
%O 1,2
%A _Jonathan Vos Post_, Apr 19 2010