1: (0 2 15)

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

2: (1 16 4)

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

3: (7 19 15)

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

4: (6 20 18)

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