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A317970
Positive n such that the ring of algebraic integers O_n in a quadratic number field has class number 1 but is not Euclidean with respect to the norm.
0
53, 56, 61, 69, 77, 88, 89, 92, 93
OFFSET
1,1
COMMENTS
The usual symbol in number theory is O_d, not O_n.
LINKS
Erich Kaltofen and Heinrich Rolletschek, Computing greatest common divisors and factorizations in quadratic number fields, Mathematics of Computation 53.188 (1989): 697-720. See page 698.
CROSSREFS
Cf. A014602.
Sequence in context: A344797 A344798 A294739 * A174355 A095549 A095539
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Aug 29 2018
STATUS
approved