II.
I
u
2
= h1.22 × 10
26
u
32
− 5.55 × 10
26
u
31
+ · · · + 2.64 × 10
26
b + 3.56 × 10
26
, 1.91 ×
10
27
u
32
−8.59×10
27
u
31
+· · ·+7.93×10
26
a−1.03×10
28
, u
33
−4u
32
+· · ·+u−3i
(i) Arc colorings
a
8
=
1
0
a
12
=
0
u
a
4
=
−2.41213u
32
+ 10.8419u
31
+ ··· − 15.6099u + 12.9459
−0.460785u
32
+ 2.09913u
31
+ ··· − 3.06645u − 1.34891
a
9
=
1
u
2
a
5
=
−2.96002u
32
+ 13.0321u
31
+ ··· − 20.9732u + 17.8750
−0.859758u
32
+ 3.54202u
31
+ ··· − 4.70879u − 1.35295
a
1
=
0.0948124u
32
− 0.269872u
31
+ ··· + 11.3494u − 0.591207
−0.163875u
32
+ 0.692395u
31
+ ··· + 10.9687u − 4.49871
a
7
=
1.45008u
32
− 5.80247u
31
+ ··· + 21.8634u − 3.85369
0.338457u
32
− 1.28192u
31
+ ··· + 13.3050u − 3.58065
a
11
=
u
u
a
3
=
−3.53497u
32
+ 15.3449u
31
+ ··· − 22.4013u + 15.7581
−1.58363u
32
+ 6.60215u
31
+ ··· − 9.85790u + 1.46335
a
2
=
−0.258759u
32
+ 1.25388u
31
+ ··· − 15.9577u + 9.66690
0.324108u
32
− 1.68500u
31
+ ··· + 3.43407u − 2.12726
a
10
=
−0.186204u
32
+ 0.863659u
31
+ ··· + 3.26805u − 3.13144
−0.504231u
32
+ 2.31629u
31
+ ··· − 10.3336u + 4.71325
a
6
=
−0.128862u
32
+ 0.912845u
31
+ ··· − 18.2018u + 12.4124
0.658876u
32
− 3.03628u
31
+ ··· + 4.30602u − 2.58234
(ii) Obstruction class = 1
(iii) Cusp Shapes =
38872874370703539084286568
264218019166409153515396703
u
32
−
859656896962605495783297375
264218019166409153515396703
u
31
+
··· −
5717214818683061704822913990
264218019166409153515396703
u +
2367461876678989709026258686
264218019166409153515396703
22