id:A133288 - OEIS Search Results

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Negative discriminants with form class group of exponent 2 (negated).

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15, 20, 24, 32, 35, 36, 40, 48, 51, 52, 60, 64, 72, 75, 84, 88, 91, 96, 99, 100, 112, 115, 120, 123, 132, 147, 148, 160, 168, 180, 187, 192, 195, 228, 232, 235, 240, 267, 280, 288, 312, 315, 340, 352, 372, 403, 408, 420, 427, 435, 448, 480, 483, 520, 532, 555, 595, 627, 660, 672, 708, 715, 760 (list; graph; listen)

	OFFSET	`1,1`
	REFERENCES	`D. A. Cox, Primes of the form x^2+ny^2, Wiley, New York, 1989.` `D. E. Flath, Introduction to Number Theory, Wiley-Interscience, 1989.`
	CROSSREFS	`Cf. A003171 is the disjoint union of A133675 and this sequence.` `Sequence in context: A134617 A113529 A102495 this_sequence A014603 A070222 A143321` `Adjacent sequences: A133285 A133286 A133287 this_sequence A133289 A133290 A133291`
	KEYWORD	`fini,nonn`
	AUTHOR	`David Brink (brink(AT)math.ku.dk), Dec 30 2007`

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Last modified December 4 20:00 EST 2008. Contains 151309 sequences.

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