1: (2 5 8)

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

2: (4 16 6)

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

3: (3 18 8)

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

4: (15 19 17)

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