-2198domain: ZAppears in sequencesDirichlet inverse of sigma_3 function (A001158).at n=12A053825G.f. satisfies: A(x) = 1 + x*(A(x) + A(-x)) + x^2*A(x)*A(-x).at n=16A208888Row sums of triangle A274659.at n=39A273166Dirichlet g.f.: zeta(2*s) / (zeta(s) * zeta(s-3)).at n=12A328640