1: (0 1 16)

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

2: (4 16 21)

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

3: (2 18 8)

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

4: (1 20 16)

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