1: (0 1 15)

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

2: (4 15 21)

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

3: (2 19 9)

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

4: (6 18 14)

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