1: (4 7 16)

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

2: (5 17 15)

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

3: (2 8 6)

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

4: (1 9 7)

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