1: (0 3 15)

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

2: (1 19 5)

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

3: (3 17 7)

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

4: (10 18 16)

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