1: (0 1 4)

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

2: (4 7 15)

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

3: (6 17 13)

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

4: (1 15 5)

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