1: (4 8 12)

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

2: (3 11 5)

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

3: (4 8 12)

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

4: (7 13 10)

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