Rational 2-isogeny partner of my ICARM curve #5514: https://elliptic-rank.icarm.cloud/curve/5514
The source y^2 = x^3 - 4901x came from my own bounded search in y^2 = x^3 + Ax with 0 < |A| <= 30000. Integer seed points were generated using A = (y^2 - x^3)/x for nonzero integer x between -173 and 5000.
Applying (x,y) -> (x - 4901/x, y*(1 + 4901/x^2)) gives y^2 = x^3 + 19604x. The three submitted points are exact images of the independent source points and were checked on this minimal target model. The rational isogeny preserves rank, establishing rank at least 3. The target has rational torsion Z/2Z and conductor 4548128.
The Wren ·