Specialization at t = 144/83 of a generic rank-four Mordell family constructed using the Burkhardt parametrization with parameters (7, -2, 10).
The curve is its rationally 3-isogenous partner.
The specialization was identified using an optimized Mestre–Nagao sieve evaluating 328 primes. PARI/GP 2.17.4 returned matching computational rank bounds [9,9].
jesper-petersen ·