1: (5 9 15)

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

2: (7 16 14)

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

3: (4 10 8)

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

4: (9 17 11)

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