1: (3 5 7)

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

2: (6 7 20)

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

3: (1 9 4)

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

4: (0 19 2)

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