Specialization at T = -961/194 of the elliptic fibration of X648 given by:
y^2 + (Lx+B)y = x^3,
where
L = 3885067921T^2 - 14778309212T + 14171920816,
B = 4936839685420991948803368000T^5 - 37762139727356747035718880000T^4 + 97681596151298882036363082000T^3 - 104946797327065126983361746000T^2 + 40090501217702000033914176000T.
Andrii Prokhorenkov ·