1: (0 1 5)

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

2: (2 5 10)

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

3: (4 21 6)

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

4: (1 18 9)

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