1: (6 8 16)

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

2: (5 12 7)

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

3: (0 13 10)

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

4: (4 15 8)

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