1: (5 10 15)

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

2: (7 16 14)

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

3: (9 17 11)

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

4: (4 15 8)

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