1: (0 4 15)

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

2: (2 19 5)

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

3: (4 18 13)

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

4: (11 16 14)

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