1: (0 1 15)

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

2: (4 15 21)

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

3: (2 19 12)

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

4: (1 20 15)

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