1: (0 1 16)

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

2: (4 16 21)

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

3: (3 19 7)

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

4: (6 17 14)

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