-5930domain: ZAppears in sequencesExpansion of (sqrt(1-2x+7x^2-6x^3+5x^4)-(1-x+x^2))/(2x^2(1-x+x^2)).at n=16A178114Expansion of 1/sqrt((1 - x + x^3)^2 + 4*x^4).at n=17A375292