1: (0 3 12)

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

2: (1 19 9)

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

3: (2 17 4)

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

4: (7 20 12)

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