1: (1 4 15)

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

2: (0 5 2)

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

3: (4 20 7)

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

4: (3 8 6)

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