1: (1 6 19)

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

2: (0 17 2)

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

3: (1 9 4)

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

4: (3 7 5)

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