This is the PARI/GP version of J. E. Cremona Elliptic Curve Data.

This package contains elliptic curves defined over the rationals representing
all isogeny classes for all conductor less than 500000. Theses data are needed
by ellsearch, ellidentify and ellgenerators and require PARI/GP.

WWW: https://pari.math.u-bordeaux.fr/packages.html
WWW: https://github.com/JohnCremona/ecdata/