1: (1 6 12)

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

2: (5 20 7)

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

3: (0 19 2)

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

4: (4 8 6)

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