1: (0 4 8)

(0)(1 20 7)(2 19 17)(3 11 6)(4 10 8 15 5)(9 14 12)(13 18 16)

2: (5 8 15)

(0)(1 20 7)(2 19 17)(3 11 6)(4 10 8)(5)(9 14 12)(13 18 16)(15)

3: (3 11 6)

(0)(1 20 7)(2 19 17)(3)(4 10 8)(5)(6)(9 14 12)(11)(13 18 16)(15)

4: (1 20 7)

(0)(1)(2 19 17)(3)(4 10 8)(5)(6)(7)(9 14 12)(11)(13 18 16)(15)(20)