1: (0 2 15)

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

2: (1 20 3)

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

3: (2 17 11)

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

4: (5 16 14)

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