1: (1 8 11)

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

2: (5 13 10)

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

3: (1 9 12)

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

4: (4 14 12)

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