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A097540 Sum_{k=1..2*n-1} J(n,k)*k where J(i,j) is the Jacobi symbol. 1
1, -2, -2, 16, 0, -12, 6, 0, 108, -28, -46, 0, 0, -40, 20, 256, 0, -8, -118, 0, 0, -92, 50, 0, 1000, -100, 14, 0, 0, -136, 74, 0, 0, -184, -300, 864, 0, -164, 128, 0, 0, -216, -126, 0, 0, -296, 406, 0, 4116, -12, -508, 0, 0, -12, 448, 0, 0, -396, -794, 0, 0, -336, 268, 4096, 0, -448, 74, 0, 0, -536, 346, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..72.

CROSSREFS

Cf. A097541.

Sequence in context: A264838 A184718 A079897 * A345225 A112327 A152541

Adjacent sequences:  A097537 A097538 A097539 * A097541 A097542 A097543

KEYWORD

sign

AUTHOR

N. J. A. Sloane, Aug 27 2004

STATUS

approved

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Last modified November 27 12:51 EST 2021. Contains 349394 sequences. (Running on oeis4.)