1: (3 7 11)

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

2: (2 7 4)

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

3: (6 12 9)

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

4: (0 11 4)

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