Proof.
Using Magma we find that

, which is coprime
to

. Thus we apply Theorem
5.4.2 with

and

. Consulting [
Cre] we find the curve
E=1918C1, with Weierstrass equation
with Mordell-Weil group

,
and
Using [
Cre] we find that

has no rational

-isogeny.
The modular form attached to

is
and we have
which completes the verification.