1: (4 9 12)

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

2: (6 13 11)

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

3: (8 15 10)

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

4: (7 16 12)

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