1: (0 1 16)

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

2: (4 16 21)

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

3: (3 19 8)

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

4: (6 17 15)

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