1: (2 7 16)

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

2: (1 12 5)

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

3: (4 8 6)

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

4: (7 17 9)

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