1: (1 6 18)

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

2: (0 17 2)

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

3: (1 14 3)

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

4: (5 15 8)

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