1: (4 7 11)

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

2: (2 8 6)

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

3: (7 13 9)

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

4: (10 15 12)

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