1: (0 3 12)

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

2: (6 16 21)

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

3: (4 17 15)

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

4: (3 19 16)

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