1: (5 9 20)

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

2: (2 9 8)

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

3: (0 19 7)

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

4: (1 17 3)

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