1: (5 10 15)

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

2: (4 12 6)

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

3: (5 10 15)

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

4: (8 13 11)

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