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A035151 Coefficients in expansion of Dirichlet series Product_p (1-(Kronecker(m,p)+1)*p^(-s)+Kronecker(m,p)*p^(-2s))^(-1) for m = -39. 1
1, 2, 1, 3, 2, 2, 0, 4, 1, 4, 2, 3, 1, 0, 2, 5, 0, 2, 0, 6, 0, 4, 0, 4, 3, 2, 1, 0, 0, 4, 0, 6, 2, 0, 0, 3, 0, 0, 1, 8, 2, 0, 2, 6, 2, 0, 2, 5, 1, 6, 0, 3, 0, 2, 4, 0, 0, 0, 2, 6, 2, 0, 0, 7, 2, 4, 0, 0, 0, 0, 2, 4, 0, 0, 3, 0, 0, 2, 2, 10, 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[-39, #] &]];

Table[a[n], {n, 1, 100}] (* G. C. Greubel, Apr 25 2018 *)

PROG

(PARI) m=-39; direuler(p=2, 101, 1/(1-(kronecker(m, p)*(X-X^2))-X))

CROSSREFS

Sequence in context: A021473 A266756 A035181 * A290536 A277855 A136662

Adjacent sequences:  A035148 A035149 A035150 * A035152 A035153 A035154

KEYWORD

nonn

AUTHOR

N. J. A. Sloane

STATUS

approved

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Last modified April 6 08:53 EDT 2020. Contains 333268 sequences. (Running on oeis4.)