1: (4 6 15)

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

2: (1 7 5)

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

3: (6 17 8)

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

4: (3 16 14)

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