1: (0 3 12)

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

2: (2 20 4)

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

3: (3 14 5)

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

4: (1 15 13)

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