Cremona's table of elliptic curves

38220 = 2² · 3 · 5 · 7² · 13

Class	r	Atkin-Lehner	Eigenvalues
38220a (1 curve)	2	2- 3+ 5+ 7+ 13+	2- 3+ 5+ 7+  1 13+ -7  1
Curve Equation t Generators 38220a1 [0,-1,0,-996,13896] 1 [-30:126:1]&[26:-70:1]
38220b (1 curve)	0	2- 3+ 5+ 7+ 13+	2- 3+ 5+ 7+  5 13+ -3 -6
Curve Equation t 38220b1 [0,-1,0,-261,-2274] 1
38220c (1 curve)	1	2- 3+ 5+ 7+ 13-	2- 3+ 5+ 7+ -1 13-  7 -2
Curve Equation t Generators 38220c1 [0,-1,0,3659,-153194] 1 [33:49:1]
38220d (4 curves)	1	2- 3+ 5+ 7- 13+	2- 3+ 5+ 7-  0 13+ -6  4
Curve Equation t Generators 38220d1 [0,-1,0,8559,-616734] 2 [145:1911:1] 38220d2 [0,-1,0,-77436,-7049160] 2 [334:2058:1] 38220d3 [0,-1,0,-79641,20013246] 2 [2154:33957:8] 38220d4 [0,-1,0,-1694436,848726040] 2 [-31029:964810:27]
38220e (2 curves)	1	2- 3+ 5+ 7- 13+	2- 3+ 5+ 7- -3 13+  3 -2
Curve Equation t Generators 38220e1 [0,-1,0,-5021,-135330] 1 [121:1007:1] 38220e2 [0,-1,0,3379,-533070] 1 [54290854:531488558:493039]
38220f (2 curves)	0	2- 3+ 5+ 7- 13-	2- 3+ 5+ 7- -4 13-  6  0
Curve Equation t 38220f1 [0,-1,0,-5161,199606] 2 38220f2 [0,-1,0,-91156,10622200] 2
38220g (1 curve)	1	2- 3+ 5- 7+ 13+	2- 3+ 5- 7+  3 13+  1 -1
Curve Equation t Generators 38220g1 [0,-1,0,33500,-456129848] 1 [1258:39690:1]
38220h (1 curve)	1	2- 3+ 5- 7+ 13+	2- 3+ 5- 7+ -3 13+  7  2
Curve Equation t Generators 38220h1 [0,-1,0,915,-12858] 1 [89:-875:1]
38220i (1 curve)	0	2- 3+ 5- 7+ 13-	2- 3+ 5- 7+ -1 13-  5 -2
Curve Equation t 38220i1 [0,-1,0,-26525,2216250] 1
38220j (4 curves)	0	2- 3+ 5- 7- 13+	2- 3+ 5- 7-  0 13+  0  4
Curve Equation t 38220j1 [0,-1,0,-61805,-9646650] 2 38220j2 [0,-1,0,-1154260,-476780408] 2 38220j3 [0,-1,0,514435,167575962] 2 38220j4 [0,-1,0,-3253420,1658139400] 2
38220k (2 curves)	0	2- 3+ 5- 7- 13+	2- 3+ 5- 7-  0 13+ -3  4
Curve Equation t 38220k1 [0,-1,0,-7205,-234975] 1 38220k2 [0,-1,0,23035,-1254063] 1
38220l (2 curves)	0	2- 3+ 5- 7- 13+	2- 3+ 5- 7-  3 13+ -3 -2
Curve Equation t 38220l1 [0,-1,0,915,-3303] 1 38220l2 [0,-1,0,-10845,500025] 1
38220m (2 curves)	0	2- 3+ 5- 7- 13+	2- 3+ 5- 7-  3 13+  6 -2
Curve Equation t 38220m1 [0,-1,0,640715,-180623183] 1 38220m2 [0,-1,0,-6435445,9124881025] 1
38220n (2 curves)	0	2- 3+ 5- 7- 13+	2- 3+ 5- 7-  4 13+  6  2
Curve Equation t 38220n1 [0,-1,0,75,162] 2 38220n2 [0,-1,0,-380,1800] 2
38220o (2 curves)	0	2- 3+ 5- 7- 13+	2- 3+ 5- 7-  4 13+ -6  6
Curve Equation t 38220o1 [0,-1,0,915,1598850] 2 38220o2 [0,-1,0,-199740,33783912] 2
38220p (2 curves)	1	2- 3+ 5- 7- 13-	2- 3+ 5- 7-  0 13- -2  8
Curve Equation t Generators 38220p1 [0,-1,0,-65,-15210] 2 [586:4851:8] 38220p2 [0,-1,0,-9620,-355368] 2 [24558:18865:216]
38220q (2 curves)	1	2- 3+ 5- 7- 13-	2- 3+ 5- 7- -6 13-  2  2
Curve Equation t Generators 38220q1 [0,-1,0,-3985,-7958] 2 [-51:245:1] 38220q2 [0,-1,0,15860,-79400] 2 [70:-1170:1]
38220r (2 curves)	0	2- 3- 5+ 7+ 13-	2- 3- 5+ 7+  0 13-  3 -4
Curve Equation t 38220r1 [0,1,0,-353061,81302535] 3 38220r2 [0,1,0,1128699,427886199] 1
38220s (2 curves)	0	2- 3- 5+ 7+ 13-	2- 3- 5+ 7+  3 13- -6  2
Curve Equation t 38220s1 [0,1,0,31395019,61890961719] 3 38220s2 [0,1,0,-315336821,-3129203517945] 1
38220t (1 curve)	0	2- 3- 5+ 7- 13+	2- 3- 5+ 7-  1 13+  3  2
Curve Equation t 38220t1 [0,1,0,9539,67200335] 1
38220u (1 curve)	0	2- 3- 5+ 7- 13+	2- 3- 5+ 7- -1 13+ -5  2
Curve Equation t 38220u1 [0,1,0,-541,-6616] 1
38220v (2 curves)	0	2- 3- 5+ 7- 13+	2- 3- 5+ 7-  4 13+ -8  4
Curve Equation t 38220v1 [0,1,0,-261,51960] 2 38220v2 [0,1,0,-22556,1282644] 2
38220w (2 curves)	1	2- 3- 5+ 7- 13-	2- 3- 5+ 7- -2 13-  2  2
Curve Equation t Generators 38220w1 [0,1,0,-5161,-144040] 2 [-43:15:1] 38220w2 [0,1,0,-2956,-265756] 2 [104:750:1]
38220x (1 curve)	1	2- 3- 5+ 7- 13-	2- 3- 5+ 7-  3 13- -1  1
Curve Equation t Generators 38220x1 [0,1,0,684,1330020] 1 [612:-15210:1]
38220y (1 curve)	1	2- 3- 5+ 7- 13-	2- 3- 5+ 7- -3 13- -7 -2
Curve Equation t Generators 38220y1 [0,1,0,44819,4320644] 1 [2587:132063:1]
38220z (2 curves)	1	2- 3- 5+ 7- 13-	2- 3- 5+ 7-  4 13- -2 -8
Curve Equation t Generators 38220z1 [0,1,0,249639,-42764436] 2 [5304:100646:27] 38220z2 [0,1,0,-1365156,-396727500] 2 [1767246:158165189:216]
38220ba (2 curves)	1	2- 3- 5+ 7- 13-	2- 3- 5+ 7-  4 13-  6 -6
Curve Equation t Generators 38220ba1 [0,1,0,19,-4656] 2 [172:2262:1] 38220ba2 [0,1,0,-4076,-99660] 2 [1418:17487:8]
38220bb (2 curves)	1	2- 3- 5+ 7- 13-	2- 3- 5+ 7-  4 13- -6 -2
Curve Equation t Generators 38220bb1 [0,1,0,3659,-62896] 2 [30664:313389:512] 38220bb2 [0,1,0,-18636,-580140] 2 [-81:636:1]
38220bc (2 curves)	1	2- 3- 5- 7+ 13-	2- 3- 5- 7+ -3 13- -3  2
Curve Equation t Generators 38220bc1 [0,1,0,-246045,46910268] 3 [-229:9555:1] 38220bc2 [0,1,0,165555,182511888] 1 [-52:13182:1]
38220bd (1 curve)	1	2- 3- 5- 7- 13+	2- 3- 5- 7- -1 13+ -7  2
Curve Equation t Generators 38220bd1 [0,1,0,75,468] 1 [3:-27:1]
38220be (1 curve)	0	2- 3- 5- 7- 13-	2- 3- 5- 7-  1 13-  7 -1
Curve Equation t 38220be1 [0,1,0,-48820,-4668700] 1
38220bf (2 curves)	0	2- 3- 5- 7- 13-	2- 3- 5- 7-  4 13-  4  0
Curve Equation t 38220bf1 [0,1,0,202795,-14979672] 2 38220bf2 [0,1,0,-889660,-125973100] 2
38220bg (1 curve)	0	2- 3- 5- 7- 13-	2- 3- 5- 7-  5 13-  3  6
Curve Equation t 38220bg1 [0,1,0,-12805,805580] 1

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