1: (3 10 13)

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

2: (1 12 4)

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

3: (9 14 11)

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

4: (2 13 8)

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