1: (0 5 12)

(0)(1 7 5 21 17 14 12)(2 19 3)(4 15 13 11 9)(6 10 8)(16 20 18)

2: (4 15 9)

(0)(1 7 5 21 17 14 12)(2 19 3)(4)(6 10 8)(9 13 11)(15)(16 20 18)

3: (1 7 12)

(0)(1)(2 19 3)(4)(5 21 17 14 12)(6 10 8)(7)(9 13 11)(15)(16 20 18)

4: (6 10 8)

(0)(1)(2 19 3)(4)(5 21 17 14 12)(6)(7)(8)(9 13 11)(10)(15)(16 20 18)