1: (4 6 13)

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

2: (5 15 7)

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

3: (4 6 13)

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

4: (11 17 14)

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