id:A003641 - OEIS Search Results

Search: id:A003641

Displaying 1-1 of 1 results found.

page 1

Number of genera of quadratic field with discriminant -4n+1.
(Formerly M0061)

+0
2

1, 1, 1, 2, 1, 1, 1, 2, 2, 1, 1, 2, 2, 1, 1, 1, 1, 1, 2, 2, 2, 1, 1, 2, 2, 2, 2, 1, 1, 1, 2, 1, 2, 2, 1, 1, 1, 2, 2, 1, 4, 1, 2, 1, 2, 2, 1, 1, 4, 2, 1, 2, 1, 4, 2, 1, 2, 1, 1, 2, 2, 2, 2, 2, 1, 1, 2, 2, 2, 1, 2, 2, 1, 2, 1, 1, 2, 1, 1, 2, 2, 4, 2, 2, 2, 2, 1, 2, 1, 4, 1, 1, 2, 2, 4, 1, 1, 2, 1, 4, 1, 1, 1, 1, 2 (list; graph; listen)

	OFFSET	`1,4`
	REFERENCES	`D. A. Buell, Binary Quadratic Forms. Springer-Verlag, NY, 1989, pp. 224-241.`
	LINKS	`Index entries for sequences related to quadratic fields`
	CROSSREFS	`Cf. A003642.` `Sequence in context: A046951 A050377 A001826 this_sequence A025890 A043277 A025864` `Adjacent sequences: A003638 A003639 A003640 this_sequence A003642 A003643 A003644`
	KEYWORD	`nonn`
	AUTHOR	`njas, Mira Bernstein`

page 1

Search completed in 0.002 seconds

Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

AT&T Labs Research