Cremona's table of elliptic curves
Conductor 42
42 = 2 · 3 · 7
Isogeny classes of curves of conductor 42
[newforms of level 42]
Class
r
Atkin-Lehner
Eigenvalues
42a
(6 curves)
0
2
-
3
+
7
+
2
-
3
+
-2
7
+
-4
6
2
-4
Curve
Equation
t
42a1
[1,1,1,-4,5]
8
42a2
[1,1,1,-84,261]
8
42a3
[1,1,1,-104,101]
4
42a4
[1,1,1,-1344,18405]
4
42a5
[1,1,1,-914,-10915]
2
42a6
[1,1,1,386,1277]
2
Data from
Elliptic Curve Data
by J. E. Cremona.
Design inspired by
The Modular Forms Explorer
by William Stein.
Part of
Computational Number Theory
Back to
Tables and computations