id:A003643 - OEIS Search Results

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Number of genera of Q(sqrt -n), n square-free.
(Formerly M0194)

+0
1

1, 1, 1, 2, 2, 1, 2, 1, 2, 2, 2, 2, 1, 4, 2, 1, 2, 2, 4, 1, 4, 2, 2, 2, 2, 2, 2, 4, 1, 2, 1, 2, 2, 2, 4, 2, 1, 2, 2, 4, 4, 1, 4, 4, 1, 2, 2, 4, 4, 1, 2, 1, 4, 2, 2, 2, 2, 4, 2, 2, 2, 2, 4, 1, 8, 2, 1, 2, 4, 2, 2, 4, 2, 2, 2, 2, 2, 1, 4, 4, 1, 4, 2, 2, 4, 1, 4, 2, 2, 4, 2, 2, 1, 4, 2, 2, 2, 2, 4, 1, 8, 2, 1, 4, 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	`Sequence in context: A127439 A092788 A091267 this_sequence A058062 A102820 A024317` `Adjacent sequences: A003640 A003641 A003642 this_sequence A003644 A003645 A003646`
	KEYWORD	`nonn,nice`
	AUTHOR	`njas, Mira Bernstein`

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

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