1: (5 11 17)

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

2: (4 16 6)

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

3: (5 11 17)

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

4: (10 18 15)

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