1: (3 8 15)

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

2: (2 14 6)

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

3: (4 9 7)

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

4: (1 10 8)

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