1: (1 5 13)

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

2: (4 19 6)

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

3: (1 5 13)

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

4: (2 20 18)

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