1: (5 8 15)

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

2: (4 12 6)

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

3: (5 8 15)

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

4: (11 16 13)

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