1: (0 2 12)

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

2: (4 12 21)

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

3: (3 19 5)

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

4: (2 20 12)

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