E=EllipticCurve([0,-155/36,0,35/6,-25/12]) Cremona Label = 150a3 J:=x*y+(5/6*x^2-5/2*x+1) Monodromy [5,5,311]-type x=(123)(4)(5), y=(12345), z=(12543) Reference: Birch's Article in LMS 200 (L.Schneps eds.) Designed by K.Hoshino and H.Nakamura (Okayama Univ.)