1: (0 7 18)

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

2: (1 19 17)

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

3: (6 21 9)

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

4: (3 7 20)

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