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A176526 Arises in cyclotomic integers, fusion categories and subfactors. 0
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, 48, 50, 60, 70, 72, 75, 80, 84, 90, 100, 105, 120, 140, 144, 150, 180, 200, 210, 240, 300, 360, 420, 600, 720 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Appears in Calegari, proof of 4.2.5. Lemma, p. 12.

LINKS

Table of n, a(n) for n=1..50.

Frank Calegari, Scott Morrison, Noah Snyder, Cyclotomic integers, fusion categories, and subfactors, arXiv:1004.0665 [math.NT], 2010.

J. H. Conway and A. J. Jones, Trigonometric Diophantine equations (on vanishing sums of roots of unity), Acta Arith. XXX (1976) 229-240. MR0422149.

CROSSREFS

Cf. A048669.

Sequence in context: A174995 A161466 A178863 * A200001 A178861 A178862

Adjacent sequences:  A176523 A176524 A176525 * A176527 A176528 A176529

KEYWORD

fini,full,nonn

AUTHOR

Jonathan Vos Post, Apr 19 2010

STATUS

approved

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Last modified September 19 18:37 EDT 2020. Contains 337181 sequences. (Running on oeis4.)