1: (3 6 11)

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

2: (1 8 5)

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

3: (3 6 11)

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

4: (7 14 9)

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