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A297063
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Square roots of discriminants of Galois cubic number fields possessing a norm-Euclidean ideal class.
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1
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7, 9, 13, 19, 31, 37, 43, 61, 67, 91, 103, 109, 127, 157
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OFFSET
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1,1
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COMMENTS
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This generalizes A185720, because the unit ideal of a norm-Euclidean number field is a norm-Euclidean ideal. In other words, this sequence consists of the elements of A185720 and 91.
There are two Galois cubic number fields with discriminant 91^2; each one possesses a nontrivial norm-Euclidean ideal class.
Shigeki Egami showed that there are only finitely many terms in this sequence.
Computations by Clark R. Lyons and Kelly Emmrich have shown that this sequence is complete up to 10^6.
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CROSSREFS
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KEYWORD
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nonn,fini
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AUTHOR
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STATUS
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approved
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