1: (4 7 11)

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

2: (11 14 17)

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

3: (13 19 15)

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

4: (6 18 16)

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