1: (0 4 6)

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

2: (3 19 5)

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

3: (1 20 16)

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

4: (6 9 18)

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