1: (3 12 15)

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

2: (3 5 8)

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

3: (4 11 6)

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

4: (1 9 7)

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