1: (6 13 20)

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

2: (0 19 8)

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

3: (5 9 7)

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

4: (2 6 14)

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