1: (1 5 16)

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

2: (0 6 2)

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

3: (5 20 8)

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

4: (7 19 9)

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