1: (2 6 15)

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

2: (0 7 5)

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

3: (1 19 3)

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

4: (6 16 8)

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