1: (0 4 7)

(0 12 10 7 1)(2 15 14 9 5)(3 21 19 8 6)(4)(11 17 13)(16 20 18)

2: (2 15 5)

(0 12 10 7 1)(2)(3 21 19 8 6)(4)(5 14 9)(11 17 13)(15)(16 20 18)

3: (6 19 8)

(0 12 10 7 1)(2)(3 21 19)(4)(5 14 9)(6)(8)(11 17 13)(15)(16 20 18)

4: (1 10 7)

(0 12 10)(1)(2)(3 21 19)(4)(5 14 9)(6)(7)(8)(11 17 13)(15)(16 20 18)