1: (5 8 11)

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

2: (6 14 9)

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

3: (5 8 11)

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

4: (3 12 10)

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