1: (0 5 15)

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

2: (4 19 6)

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

3: (5 17 7)

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

4: (13 18 16)

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