The modular curve $X_{311}$

Curve name $X_{311}$
Index $48$
Level $16$
Genus $1$
Does the subgroup contain $-I$? Yes
Generating matrices $ \left[ \begin{matrix} 5 & 10 \\ 4 & 1 \end{matrix}\right], \left[ \begin{matrix} 13 & 7 \\ 2 & 3 \end{matrix}\right], \left[ \begin{matrix} 1 & 4 \\ 0 & 1 \end{matrix}\right], \left[ \begin{matrix} 7 & 1 \\ 0 & 1 \end{matrix}\right]$
Images in lower levels
LevelIndex of imageCorresponding curve
$2$ $3$ $X_{6}$
$4$ $6$ $X_{11}$
$8$ $24$ $X_{97}$
Meaning/Special name
Chosen covering $X_{97}$
Curves that $X_{311}$ minimally covers $X_{97}$, $X_{109}$, $X_{149}$
Curves that minimally cover $X_{311}$
Curves that minimally cover $X_{311}$ and have infinitely many rational points.
Model A model was not computed. This curve is covered by $X_{149}$, which only has finitely many rational points.
Info about rational points
Comments on finding rational points None
Elliptic curve whose $2$-adic image is the subgroup None
Generic density of odd order reductions N/A

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