Found in a rational-parameter search of the Kubert–Tate family for torsion ℤ/10ℤ: y^2 + (1-c)xy - by = x^3 - bx^2 with d=t^2/(t-(t-1)^2), c=td-t, b=cd, at t = 14/11; converted to the global minimal model. The 2 witness points were found with PARI/GP ellrank. Conductor 404284650, torsion ℤ/10ℤ.
David Renshaw ·