Cremona's table of elliptic curves

18228 = 2² · 3 · 7² · 31

Class	r	Atkin-Lehner	Eigenvalues
18228a (4 curves)	1	2- 3+ 7- 31+	2- 3+  0 7-  0  4  6  4
Curve Equation t Generators 18228a1 [0,-1,0,-19273,801130] 2 [173:1617:1] 18228a2 [0,-1,0,-103308,-12073032] 2 [1482:55566:1] 18228a3 [0,-1,0,-1459873,679410166] 2 [10638168:46064557:13824] 18228a4 [0,-1,0,-1461588,677735640] 2 [1629:51156:1]
18228b (2 curves)	1	2- 3+ 7- 31+	2- 3+  0 7-  3  4 -3  7
Curve Equation t Generators 18228b1 [0,-1,0,-93,-279] 1 [-5:6:1] 18228b2 [0,-1,0,-1773,29289] 1 [16:69:1]
18228c (2 curves)	1	2- 3+ 7- 31+	2- 3+  2 7-  0 -2  0 -4
Curve Equation t Generators 18228c1 [0,-1,0,-457,-5018] 2 [2046:16856:27] 18228c2 [0,-1,0,-8052,-275400] 2 [1469400:3339595:13824]
18228d (2 curves)	1	2- 3+ 7- 31+	2- 3+ -3 7-  0 -2  0  1
Curve Equation t Generators 18228d1 [0,-1,0,-149662,23479849] 1 [784:19683:1] 18228d2 [0,-1,0,-12294802,16597309429] 1 [2107:6453:1]
18228e (1 curve)	1	2- 3+ 7- 31+	2- 3+ -3 7-  0  5  0 -6
Curve Equation t Generators 18228e1 [0,-1,0,4443,-2309439] 1 [656:16807:1]
18228f (2 curves)	0	2- 3+ 7- 31-	2- 3+  0 7-  0  0  2  4
Curve Equation t 18228f1 [0,-1,0,-1633,25558] 2 18228f2 [0,-1,0,-3348,-35496] 2
18228g (2 curves)	0	2- 3+ 7- 31-	2- 3+  0 7- -4  4 -2 -4
Curve Equation t 18228g1 [0,-1,0,-1112953,452254594] 2 18228g2 [0,-1,0,-1196988,380085336] 2
18228h (1 curve)	0	2- 3+ 7- 31-	2- 3+  3 7-  2  4  4  5
Curve Equation t 18228h1 [0,-1,0,-114,-3303] 1
18228i (2 curves)	0	2- 3+ 7- 31-	2- 3+ -4 7- -2 -2  8 -4
Curve Equation t 18228i1 [0,-1,0,211615,49701366] 2 18228i2 [0,-1,0,-1436500,507877336] 2
18228j (2 curves)	0	2- 3- 7+ 31-	2- 3-  0 7+  3 -4  3 -7
Curve Equation t 18228j1 [0,1,0,-4573,104831] 3 18228j2 [0,1,0,-86893,-9872353] 1
18228k (1 curve)	0	2- 3- 7- 31+	2- 3-  1 7-  0  6  8 -7
Curve Equation t 18228k1 [0,1,0,-310,-2479] 1
18228l (1 curve)	1	2- 3- 7- 31-	2- 3-  1 7-  0 -1  4 -2
Curve Equation t Generators 18228l1 [0,1,0,-1045,23687] 1 [2:147:1]

Data from Elliptic Curve Data by J. E. Cremona.
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