1: (0 5 9)

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

2: (7 9 10)

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

3: (4 20 6)

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

4: (5 12 9)

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