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A097542 Sum_{k=1..2*n-1} J(4*n,k)*k, where J(i,j) is the Jacobi symbol. 2
1, -2, -4, 16, 0, -12, -16, 0, 54, -28, -28, 0, 0, -40, -48, 256, 0, -8, -76, 0, 0, -92, -80, 0, 500, -100, -4, 0, 0, -136, -160, 0, 0, -184, -152, 864, 0, -164, -208, 0, 0, -216, -252, 0, 0, -296, -224, 0, 2058, -12, -312, 0, 0, -12, -368, 0, 0, -396, -340, 0, 0, -336, 32, 4096, 0, -448, -492, 0, 0, -536, -464, 0, 0, -492 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Suggested by a formula in Petersson.
REFERENCES
H. Petersson, Modulfunktionen und Quadratische Formen, Springer-Verlag, 1982; p. 98.
LINKS
CROSSREFS
Cf. A097542.
Sequence in context: A132483 A153064 A125594 * A277850 A332352 A217291
KEYWORD
sign
AUTHOR
N. J. A. Sloane, Aug 27 2004
STATUS
approved

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Last modified March 28 12:26 EDT 2024. Contains 371254 sequences. (Running on oeis4.)