1: (0 3 11)

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

2: (2 19 4)

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

3: (1 20 16)

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

4: (3 12 5)

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