login
This site is supported by donations to The OEIS Foundation.
Logo

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A143747 Complete list, sorted, of discriminants of definite Eichler orders with class number 1. 1
1, 5, 8, 13, 17, 49, 81, 148, 169, 316, 321, 725, 1957, 2777, 24217 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

COMMENTS

From Kirschmer and Voight, Table 7.1: Definite Eichler orders with class number h = 1, p.26.

LINKS

Markus Kirschmer, John Voight, Algorithmic enumeration of ideal classes for quaternion orders, arXiv:0808.3833 [math.NT]

EXAMPLE

There are 3 fields of degree n = 4. With discriminant d_F = 725 (as opposed to the possible 1957 or 2777) we may have norms (D, N) = {(1,1),(1,11),(1,19),(1,29)}. There is a unique field of degree n = 5, which has discriminant d_F = 24217, D = 5, N = 1.

CROSSREFS

Cf. A143746.

Sequence in context: A003653 A003655 A082823 * A101345 A097404 A020687

Adjacent sequences:  A143744 A143745 A143746 * A143748 A143749 A143750

KEYWORD

fini,full,nonn

AUTHOR

Jonathan Vos Post (jvospost3(AT)gmail.com), Aug 30 2008

EXTENSIONS

Replaced link to cached arXiv URL by link to the abstract - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Mar 01 2010

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 17 13:28 EST 2012. Contains 206031 sequences.