+t^2*(10*z^2)
+t^3*(6*z^2+14*z^3)
+t^4*(6*z^2+28*z^3+18*z^4)
+t^5*(8*z^2+42*z^3+72*z^4+22*z^5)
+t^6*(3*z^2+67*z^3+152*z^4+143*z^5+26*z^6)
+t^7*(z^2+33*z^3+303*z^4+412*z^5+247*z^6+30*z^7)
+t^8*(12*z^3+285*z^4+1007*z^5+943*z^6+390*z^7+34*z^8)
+t^9*(z^3+195*z^4+1499*z^5+2766*z^6+1913*z^7+578*z^8+38*z^9)
