1: (1 6 10)

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

2: (4 13 8)

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

3: (1 7 5)

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

4: (1 16 12)

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