1: (1 6 10)

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

2: (4 14 7)

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

3: (9 16 13)

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

4: (1 15 11)

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