1: (5 9 12)

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

2: (8 13 10)

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

3: (2 12 7)

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

4: (1 11 3)

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