107128domain: NAppears in sequencesTheta series of lattice Kappa_7.at n=34A015236a(n) = n + (n+1)^2 + (n+2)^3 + (n+3)^4 + (n+4)^5.at n=6A027622Number of n X n (-1,1)-circulant matrices with determinant 0.at n=18A144926