1: (1 5 12)

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

2: (0 7 2)

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

3: (5 16 20)

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

4: (4 10 6)

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