I.
I
u
1
= h−1.68 × 10
7
u
16
− 1.81 × 10
8
u
15
+ · · · + 3.76 × 10
8
b + 1.73 × 10
8
, 2.97 ×
10
8
u
16
+3.31×10
9
u
15
+· · ·+1.13×10
9
a−1.14×10
10
, u
17
+11u
16
+· · ·−24u+1i
(i) Arc colorings
a
3
=
1
0
a
5
=
0
u
a
2
=
1
−u
2
a
4
=
u
−u
3
+ u
a
1
=
−u
2
+ 1
u
4
− 2u
2
a
10
=
−0.263318u
16
− 2.93396u
15
+ ··· + 47.5834u + 10.0951
0.0447238u
16
+ 0.480169u
15
+ ··· − 1.76545u − 0.460903
a
9
=
−0.263318u
16
− 2.93396u
15
+ ··· + 47.5834u + 10.0951
0.0407732u
16
+ 0.444464u
15
+ ··· − 2.40115u − 0.423444
a
6
=
−0.192384u
16
− 2.10577u
15
+ ··· + 12.3045u + 4.41593
−0.00859093u
16
− 0.0907645u
15
+ ··· − 0.527045u − 0.177073
a
7
=
−0.183793u
16
− 2.01500u
15
+ ··· + 12.8316u + 4.59300
−0.00859093u
16
− 0.0907645u
15
+ ··· − 0.527045u − 0.177073
a
11
=
−0.115128u
16
− 1.29525u
15
+ ··· + 24.3045u + 7.93474
0.0334181u
16
+ 0.371617u
15
+ ··· − 3.22037u − 0.304091
a
8
=
−0.157121u
16
− 1.73385u
15
+ ··· + 10.9663u + 7.16044
0.0206240u
16
+ 0.231250u
15
+ ··· − 4.03477u − 0.167498
a
12
=
0.183793u
16
+ 2.01500u
15
+ ··· − 12.8316u − 4.59300
−0.00282593u
16
− 0.0405560u
15
+ ··· + 3.13714u + 0.174058
(ii) Obstruction class = −1
(iii) Cusp Shapes = −
69994879
187967904
u
16
−
2321600843
563903712
u
15
+ ··· +
17938178839
563903712
u +
1576601201
140975928
2