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Number of genera of quadratic field with discriminant -4n, where -n == 2 or 3 (mod 4).
(Formerly M0211)

+0
2

1, 1, 2, 2, 2, 2, 2, 2, 4, 2, 2, 2, 4, 4, 2, 2, 2, 2, 4, 2, 2, 4, 2, 2, 2, 4, 4, 4, 4, 2, 2, 4, 4, 2, 4, 2, 2, 4, 2, 2, 2, 4, 8, 2, 2, 4, 2, 4, 2, 2, 4, 4, 4, 2, 2, 4, 4, 2, 4, 2, 2, 4, 2, 2, 4, 8, 2, 4, 2, 4, 4, 2, 2, 4, 4, 4, 4, 2, 2, 2, 4, 2, 4, 2, 4, 8, 4, 2, 4, 2, 4, 4, 2, 2, 4, 2, 4, 4, 2, 4, 4, 4, 2, 2, 4 (list; graph; listen)

	OFFSET	`1,3`
	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. A003641.` `Sequence in context: A027388 A083261 A003648 this_sequence A100007 A104369 A051702` `Adjacent sequences: A003639 A003640 A003641 this_sequence A003643 A003644 A003645`
	KEYWORD	`nonn`
	AUTHOR	`njas, Mira Bernstein`

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Last modified July 26 13:41 EDT 2008. Contains 142293 sequences.

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