Cremona's table of elliptic curves

81700 = 2² · 5² · 19 · 43

Class	r	Atkin-Lehner	Eigenvalues
81700a (1 curve)	1	2- 5+ 19+ 43-	2-  0 5+ -3  0  0 -3 19+
Curve Equation t Generators 81700a1 [0,0,0,25,2750] 1 [-5:50:1]
81700b (2 curves)	1	2- 5+ 19+ 43-	2- -2 5+  4  0 -4  2 19+
Curve Equation t Generators 81700b1 [0,1,0,-1633,-34512] 2 [53:175:1] 81700b2 [0,1,0,-28508,-1862012] 2 [1128:37450:1]
81700c (2 curves)	1	2- 5+ 19- 43+	2-  2 5+ -2 -3 -5  6 19-
Curve Equation t Generators 81700c1 [0,-1,0,24167,-2887338] 1 [45260340756:1089689557563:82881856] 81700c2 [0,-1,0,-1050833,-415149838] 1 [5023:347871:1]
81700d (4 curves)	1	2- 5+ 19- 43+	2-  2 5+  4  0  4 -6 19-
Curve Equation t Generators 81700d1 [0,-1,0,12367,-10699738] 2 [277951766:9499262325:238328] 81700d2 [0,-1,0,-659508,-200168488] 2 [198609066396264846:5186906358626020825:152119371658968] 81700d3 [0,-1,0,-3312633,-2319912238] 2 [34115841076620632845135242:26294479271852938926976924750:57429400943477497221] 81700d4 [0,-1,0,-53004508,-148513408488] 2 [318425694098711863411708510746785813209412994:245409857902237260610693060750906491894897174175:536011408706155530435752722048151016552]
81700e (2 curves)	1	2- 5+ 19- 43+	2-  2 5+ -5 -6 -2  3 19-
Curve Equation t Generators 81700e1 [0,-1,0,10092,-447688] 1 [760592:11435625:4096] 81700e2 [0,-1,0,-290908,-60647688] 1 [1782:71250:1]
81700f (1 curve)	1	2- 5+ 19- 43+	2- -2 5+  0 -5  7 -1 19-
Curve Equation t Generators 81700f1 [0,1,0,-173,943] 1 [-3:38:1]
81700g (1 curve)	0	2- 5+ 19- 43-	2-  2 5+  0 -3 -1  3 19-
Curve Equation t 81700g1 [0,-1,0,-15702533,23955079937] 1
81700h (1 curve)	2	2- 5+ 19- 43-	2- -2 5+ -2 -5 -1 -2 19-
Curve Equation t Generators 81700h1 [0,1,0,-33,-152] 1 [7:3:1]&[9:19:1]
81700i (1 curve)	0	2- 5+ 19- 43-	2- -2 5+ -4  5 -1 -5 19-
Curve Equation t 81700i1 [0,1,0,5077867,1593683863] 1
81700j (2 curves)	2	2- 5- 19- 43+	2-  0 5- -4  0 -4  0 19-
Curve Equation t Generators 81700j1 [0,0,0,-2480,33825] 2 [120:4085:27]&[-4:209:1] 81700j2 [0,0,0,6545,223350] 2 [-25:210:1]&[15:570:1]
81700k (1 curve)	0	2- 5- 19- 43+	2-  2 5-  2 -5  1  2 19-
Curve Equation t 81700k1 [0,-1,0,-833,-17338] 1
81700l (2 curves)	1	2- 5- 19- 43-	2-  0 5-  4  0  4  0 19-
Curve Equation t Generators 81700l1 [0,0,0,-62000,4228125] 2 [-1262:25403:8] 81700l2 [0,0,0,163625,27918750] 2 [99134:15971229:2744]
81700m (1 curve)	1	2- 5- 19- 43-	2-  2 5-  0 -5 -7  1 19-
Curve Equation t Generators 81700m1 [0,-1,0,-4333,126537] 1 [1416:5453:27]
81700n (2 curves)	1	2- 5- 19- 43-	2- -2 5-  2 -3  5 -6 19-
Curve Equation t Generators 81700n1 [0,1,0,967,-22712] 3 [73:665:1] 81700n2 [0,1,0,-42033,-3338012] 1 [25828:432117:64]

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