1: (3 7 10)

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

2: (6 11 8)

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

3: (5 13 10)

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

4: (1 9 4)

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