Cremona's table of elliptic curves

20808 = 2³ · 3² · 17²

Class	r	Atkin-Lehner	Eigenvalues
20808a (1 curve)	1	2+ 3+ 17+	2+ 3+  1  2 -3 -1 17+ -3
Curve Equation t Generators 20808a1 [0,0,0,3468,19652] 1 [136:1734:1]
20808b (1 curve)	1	2+ 3+ 17+	2+ 3+ -2  5 -6  5 17+  3
Curve Equation t Generators 20808b1 [0,0,0,-6426,-198271] 1 [140:1283:1]
20808c (1 curve)	1	2+ 3+ 17+	2+ 3+  3  0 -1  0 17+ -2
Curve Equation t Generators 20808c1 [0,0,0,-51,238] 1 [2:12:1]
20808d (1 curve)	1	2+ 3+ 17+	2+ 3+  3 -4 -1 -5 17+  5
Curve Equation t Generators 20808d1 [0,0,0,-1836,-31212] 1 [102:918:1]
20808e (1 curve)	1	2+ 3+ 17+	2+ 3+ -3  4  1 -5 17+  5
Curve Equation t Generators 20808e1 [0,0,0,-530604,-153344556] 1 [9537:928557:1]
20808f (1 curve)	0	2+ 3+ 17-	2+ 3+  2 -5  6  5 17-  3
Curve Equation t 20808f1 [0,0,0,-1857114,-974105423] 1
20808g (1 curve)	0	2+ 3+ 17-	2+ 3+ -3  0  1  0 17- -2
Curve Equation t 20808g1 [0,0,0,-14739,1169294] 1
20808h (2 curves)	0	2+ 3- 17+	2+ 3-  0  0  2 -6 17+  4
Curve Equation t 20808h1 [0,0,0,-21675,894166] 2 20808h2 [0,0,0,-125715,-16438898] 2
20808i (1 curve)	0	2+ 3- 17+	2+ 3-  0  3  2 -3 17+  1
Curve Equation t 20808i1 [0,0,0,-255,-2414] 1
20808j (1 curve)	0	2+ 3- 17+	2+ 3-  1 -4  3  2 17+  0
Curve Equation t 20808j1 [0,0,0,-12277587,-16564051762] 1
20808k (4 curves)	0	2+ 3- 17+	2+ 3-  2  4  4  6 17+  4
Curve Equation t 20808k1 [0,0,0,-136119,-19288438] 2 20808k2 [0,0,0,-188139,-3193450] 4 20808k3 [0,0,0,-1956819,1049171150] 2 20808k4 [0,0,0,748221,-25478818] 2
20808l (6 curves)	0	2+ 3- 17+	2+ 3- -2  0  4 -2 17+ -4
Curve Equation t 20808l1 [0,0,0,1734,-34391] 2 20808l2 [0,0,0,-11271,-343910] 4 20808l3 [0,0,0,-167331,-26343506] 2 20808l4 [0,0,0,-63291,5846470] 4 20808l5 [0,0,0,-999651,384697726] 2 20808l6 [0,0,0,40749,23179534] 2
20808m (2 curves)	0	2+ 3- 17+	2+ 3- -2  2 -6  2 17+  0
Curve Equation t 20808m1 [0,0,0,-11271,-186694] 2 20808m2 [0,0,0,40749,-1424770] 2
20808n (1 curve)	0	2+ 3- 17+	2+ 3-  3  0 -1  3 17+  1
Curve Equation t 20808n1 [0,0,0,1328244,229319188] 1
20808o (1 curve)	0	2+ 3- 17+	2+ 3-  4  5  0 -1 17+ -3
Curve Equation t 20808o1 [0,0,0,357,99110] 1
20808p (1 curve)	2	2+ 3- 17+	2+ 3- -4  1 -2 -3 17+ -5
Curve Equation t Generators 20808p1 [0,0,0,-102,425] 1 [-8:27:1]&[4:9:1]
20808q (1 curve)	1	2+ 3- 17-	2+ 3-  0 -3 -2 -3 17-  1
Curve Equation t Generators 20808q1 [0,0,0,-73695,-11859982] 1 [331:108:1]
20808r (1 curve)	1	2+ 3- 17-	2+ 3- -1  4 -3  2 17-  0
Curve Equation t Generators 20808r1 [0,0,0,-42483,-3371474] 1 [578:12852:1]
20808s (1 curve)	1	2+ 3- 17-	2+ 3-  4 -1  2 -3 17- -5
Curve Equation t Generators 20808s1 [0,0,0,-29478,2088025] 1 [0:1445:1]
20808t (1 curve)	1	2+ 3- 17-	2+ 3- -4 -5  0 -1 17- -3
Curve Equation t Generators 20808t1 [0,0,0,103173,486927430] 1 [-289:20808:1]
20808u (1 curve)	0	2- 3+ 17+	2- 3+ -1  2  3 -1 17+ -3
Curve Equation t 20808u1 [0,0,0,31212,-530604] 1
20808v (1 curve)	0	2- 3+ 17+	2- 3+  2  5  6  5 17+  3
Curve Equation t 20808v1 [0,0,0,-57834,5353317] 1
20808w (1 curve)	0	2- 3+ 17+	2- 3+  3  4 -1 -5 17+  5
Curve Equation t 20808w1 [0,0,0,-58956,5679428] 1
20808x (1 curve)	0	2- 3+ 17+	2- 3+ -3  0  1  0 17+ -2
Curve Equation t 20808x1 [0,0,0,-459,-6426] 1
20808y (1 curve)	2	2- 3+ 17+	2- 3+ -3 -4  1 -5 17+  5
Curve Equation t Generators 20808y1 [0,0,0,-204,1156] 1 [-16:18:1]&[0:34:1]
20808z (1 curve)	1	2- 3+ 17-	2- 3+ -2 -5 -6  5 17-  3
Curve Equation t Generators 20808z1 [0,0,0,-16714026,26300846421] 1 [2361:54:1]
20808ba (1 curve)	1	2- 3+ 17-	2- 3+  3  0 -1  0 17- -2
Curve Equation t Generators 20808ba1 [0,0,0,-132651,-31570938] 1 [54726774:1669483062:50653]
20808bb (1 curve)	1	2- 3- 17+	2- 3-  0  1  4 -5 17+  5
Curve Equation t Generators 20808bb1 [0,0,0,-3315,-73474] 1 [67:72:1]
20808bc (1 curve)	1	2- 3- 17+	2- 3-  0  1 -6  5 17+ -5
Curve Equation t Generators 20808bc1 [0,0,0,-2505630,3460191509] 1 [-11422:513945:8]
20808bd (2 curves)	1	2- 3- 17+	2- 3-  0  2 -2 -2 17+ -4
Curve Equation t Generators 20808bd1 [0,0,0,-73695,2839714] 2 [-127:3186:1] 20808bd2 [0,0,0,-958035,360643678] 2 [26049:493712:27]
20808be (2 curves)	1	2- 3- 17+	2- 3-  0 -2  0  2 17+  4
Curve Equation t Generators 20808be1 [0,0,0,-125715,16969502] 2 [-238:5780:1] 20808be2 [0,0,0,-21675,44207174] 2 [113764:4798845:64]
20808bf (2 curves)	1	2- 3- 17+	2- 3-  0 -2  2 -2 17+ -4
Curve Equation t Generators 20808bf1 [0,0,0,-255,578] 2 [1:18:1] 20808bf2 [0,0,0,-3315,73406] 2 [35:16:1]
20808bg (1 curve)	1	2- 3- 17+	2- 3- -3  4  1 -5 17+ -7
Curve Equation t Generators 20808bg1 [0,0,0,-45084,-7526716] 1 [272:578:1]
20808bh (1 curve)	0	2- 3- 17-	2- 3-  0 -1 -4 -5 17-  5
Curve Equation t 20808bh1 [0,0,0,-958035,-360977762] 1
20808bi (1 curve)	0	2- 3- 17-	2- 3-  0 -1  6  5 17- -5
Curve Equation t 20808bi1 [0,0,0,-8670,704293] 1

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