1: (5 10 15)

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

2: (3 10 9)

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

3: (4 12 6)

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

4: (8 14 11)

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