1: (0 2 16)

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

2: (1 20 4)

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

3: (15 21 17)

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

4: (2 19 5)

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