1: (1 5 16)

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

2: (4 19 6)

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

3: (0 7 2)

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

4: (5 20 8)

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