id:A031397 - OEIS Search Results

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Non-square-free n such that Pell equation x^2 - n y^2 = -1 is soluble.

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	OFFSET	`0,1`
	REFERENCES	`"Advanced Number Theory" by Harvey Cohn.`
	CROSSREFS	`Equals A003814 \setminus A003654, cf. A031396.` `Sequence in context: A044000 A044237 A044618 this_sequence A045181 A093194 A043474` `Adjacent sequences: A031394 A031395 A031396 this_sequence A031398 A031399 A031400`
	KEYWORD	`nonn`
	AUTHOR	`David W. Wilson (davidwwilson(AT)comcast.net)`

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Last modified December 17 23:40 EST 2009. Contains 171025 sequences.

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