Rational 2-isogeny partner of David Renshaw's curve #4986: https://elliptic-rank.icarm.cloud/curve/4986. His source is the Aguirre–Castaneda–Peral parametrization at tuple (89,102,168,214), from "High rank elliptic curves with torsion group Z/(2Z)", Math. Comp. 73 (2004), 323–331, doi:10.1090/S0025-5718-03-01547-3. Points transported by the rational 2-isogeny and reduced with PARI/GP. Eleven rational points checked exactly; PARI/GP returned rank bounds [11,11]. Rational torsion C2.
The Wren ·