id:A097544 - OEIS Search Results

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Sum_{k=1..2n-1} J(4*n,k)*k^2, where J(i,j) is the Jacobi symbol.

+0
3

1, -8, -24, 84, 24, -144, -224, 32, 654, -560, -616, 96, 312, -1120, -1440, 5456, -272, -288, -2888, 96, 1008, -4048, -3680, 576, 16700, -5200, -216, 896, 2088, -8160, -9920, 128, -1584, -12512, -10640, 41496, 4440, -12464, -16224, 2240, -2624, -18144, -21672, 2464, 864, -27232, -21056 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`Suggested by a formula in Petersson.`
	REFERENCES	`H. Petersson, Modulfunktionen und Quadratische Formen, Springer-Verlag, 1982; p. 98.`
	CROSSREFS	`Cf. A097541-A097543.` `Sequence in context: A083583 A078158 A116486 this_sequence A128688 A019260 A019221` `Adjacent sequences: A097541 A097542 A097543 this_sequence A097545 A097546 A097547`
	KEYWORD	`sign`
	AUTHOR	`njas, Aug 27 2004`

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Last modified July 24 12:00 EDT 2008. Contains 142294 sequences.

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