1: (4 10 13)

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

2: (9 16 11)

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

3: (12 20 15)

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

4: (5 10 14)

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