I.
I
u
1
= h−9.85×10
24
u
79
−2.72×10
25
u
78
+· · ·+9.93×10
23
b−7.91×10
24
, −6.33×
10
24
u
79
−2.54×10
25
u
78
+· · ·+1.99×10
24
a−1.65×10
25
, u
80
+4u
79
+· · ·+6u+1i
(i) Arc colorings
a
2
=
0
u
a
5
=
1
0
a
6
=
1
u
2
a
3
=
−u
−u
3
+ u
a
7
=
−u
2
+ 1
u
2
a
11
=
3.18934u
79
+ 12.7759u
78
+ ··· + 47.5761u + 8.28813
9.92061u
79
+ 27.4001u
78
+ ··· + 40.9951u + 7.96884
a
8
=
7.35876u
79
+ 21.6854u
78
+ ··· + 23.9027u + 7.03413
−0.876176u
79
+ 2.07029u
78
+ ··· + 16.0513u + 4.25701
a
1
=
u
3
u
5
− u
3
+ u
a
4
=
u
4
− u
2
+ 1
−u
4
a
9
=
−1.44610u
79
− 3.25664u
78
+ ··· − 0.0887997u + 2.46775
3.89301u
79
+ 9.15127u
78
+ ··· + 9.76680u + 2.44691
a
10
=
3.89399u
79
+ 14.3516u
78
+ ··· + 46.8184u + 7.87170
8.12729u
79
+ 22.9501u
78
+ ··· + 35.1348u + 6.87334
a
12
=
7.21937u
79
+ 24.5178u
78
+ ··· + 58.4840u + 11.4296
7.78413u
79
+ 24.6495u
78
+ ··· + 45.8212u + 9.60214
(ii) Obstruction class = −1
(iii) Cusp Shapes =
225344555042881471562867245
993119401398295715683309
u
79
+
1486568910759558927791433433
1986238802796591431366618
u
78
+
··· +
2947932581577874658457472291
1986238802796591431366618
u +
619487791938232455082216191
1986238802796591431366618
2