1: (1 5 15)

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

2: (3 5 8)

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

3: (4 12 6)

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

4: (5 10 7)

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