1: (4 8 12)

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

2: (7 13 11)

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

3: (6 15 12)

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

4: (5 18 14)

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