# Curves in abelian variety isogeny class 3.9.ab_ad_bt, downloaded from the LMFDB on 17 January 2026.
y^2=x^7+x^4+a*x+1
y^2=x^7+x^4+(2*a+1)*x+1
y^2=x^7+a*x^5+(a+1)*x^4+(a+1)*x^3+2*x^2+2*x+2*a
y^2=x^7+(2*a+1)*x^5+(a+1)*x^4+(2*a+2)*x^3+x^2+2*x+2*a+1