1: (4 13 20)

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

2: (1 19 9)

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

3: (0 7 2)

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

4: (6 13 8)

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