1: (4 8 11)

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

2: (6 15 9)

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

3: (4 8 11)

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

4: (10 17 12)

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