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A035197 Coefficients in expansion of Dirichlet series Product_p (1-(Kronecker(m,p)+1)*p^(-s)+Kronecker(m,p)*p^(-2s))^(-1) for m = 15. 2
1, 2, 1, 3, 1, 2, 2, 4, 1, 2, 2, 3, 0, 4, 1, 5, 2, 2, 0, 3, 2, 4, 0, 4, 1, 0, 1, 6, 0, 2, 0, 6, 2, 4, 2, 3, 0, 0, 0, 4, 0, 4, 2, 6, 1, 0, 0, 5, 3, 2, 2, 0, 2, 2, 2, 8, 0, 0, 2, 3, 2, 0, 2, 7, 0, 4, 2, 6, 0, 4, 2, 4, 0, 0, 1, 0, 4, 0, 0, 5, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

G. C. Greubel, Table of n, a(n) for n = 1..10000

MATHEMATICA

a[n_] := If[n < 0, 0, DivisorSum[n, KroneckerSymbol[15, #] &]]; Table[ a[n], {n, 1, 100}] (* G. C. Greubel, Apr 27 2018 *)

PROG

(PARI) m=15; direuler(p=2, 101, 1/(1-(kronecker(m, p)*(X-X^2))-X))

CROSSREFS

Sequence in context: A035942 A329622 A036989 * A227872 A323165 A091948

Adjacent sequences:  A035194 A035195 A035196 * A035198 A035199 A035200

KEYWORD

nonn

AUTHOR

N. J. A. Sloane

STATUS

approved

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Last modified December 7 20:18 EST 2021. Contains 349587 sequences. (Running on oeis4.)