1: (6 8 13)

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

2: (5 9 7)

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

3: (4 11 8)

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

4: (10 16 12)

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