1: (4 10 12)

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

2: (6 13 11)

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

3: (5 18 7)

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

4: (2 8 4)

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