1: (0 3 18)

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

2: (1 19 7)

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

3: (5 18 8)

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

4: (2 16 4)

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