1: (1 8 11)

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

2: (4 12 10)

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

3: (0 5 3)

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

4: (1 16 7)

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