II.
I
u
2
= h−1.30×10
27
u
42
+5.59×10
27
u
41
+· · ·+5.18×10
24
b−1.73×10
27
, −5.05×
10
27
u
42
+2.25×10
28
u
41
+· · ·+5.18×10
24
a−8.77×10
27
, u
43
−5u
42
+· · ·+9u−1i
(i) Arc colorings
a
8
=
1
0
a
12
=
0
u
a
3
=
976.290u
42
− 4339.64u
41
+ ··· − 12563.5u + 1694.59
251.254u
42
− 1079.06u
41
+ ··· − 2631.38u + 334.926
a
9
=
1
−u
2
a
7
=
690.201u
42
− 3223.52u
41
+ ··· − 11234.8u + 1666.48
1063.08u
42
− 4649.80u
41
+ ··· − 12523.5u + 1690.74
a
2
=
1946.84u
42
− 8537.33u
41
+ ··· − 22943.6u + 3065.48
−1757.20u
42
+ 7761.50u
41
+ ··· + 21933.8u − 3006.41
a
10
=
−381.102u
42
+ 1690.92u
41
+ ··· + 4259.64u − 572.007
−571.317u
42
+ 2488.17u
41
+ ··· + 6264.83u − 823.904
a
6
=
−417.569u
42
+ 1685.77u
41
+ ··· + 2645.87u − 251.748
1435.87u
42
− 6302.74u
41
+ ··· − 17081.9u + 2320.31
a
1
=
−3563.78u
42
+ 15715.5u
41
+ ··· + 43934.5u − 5998.17
3561.78u
42
− 15706.5u
41
+ ··· − 43899.5u + 5987.17
a
11
=
−u
u
a
5
=
−196.119u
42
+ 664.940u
41
+ ··· − 606.796u + 222.805
1214.42u
42
− 5281.91u
41
+ ··· − 13829.2u + 1845.76
a
4
=
−5669.06u
42
+ 25125.2u
41
+ ··· + 72661.1u − 10052.1
2770.71u
42
− 12334.0u
41
+ ··· − 36228.9u + 5041.16
(ii) Obstruction class = 1
(iii) Cusp Shapes
= −
39731743503703556572717582173
5176114318849511714698289
u
42
+
176212969798214825520092916434
5176114318849511714698289
u
41
+ ··· +
528850699858818575212985731870
5176114318849511714698289
u −
73356324113368931490575946909
5176114318849511714698289
22