1: (3 6 16)

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

2: (1 7 5)

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

3: (6 18 8)

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

4: (15 19 17)

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