1: (7 11 15)

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

2: (9 18 13)

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

3: (6 10 8)

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

4: (1 7 12)

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