1: (1 5 15)

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

2: (0 8 2)

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

3: (4 20 6)

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

4: (5 18 7)

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