1: (0 6 15)

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

2: (4 16 14)

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

3: (2 7 5)

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

4: (10 19 15)

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