1: (1 4 15)

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

2: (0 5 3)

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

3: (4 17 6)

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

4: (2 18 16)

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