1: (5 8 13)

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

2: (4 9 6)

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

3: (3 12 8)

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

4: (7 15 10)

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