1: (6 11 15)

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

2: (1 4 11)

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

3: (3 20 5)

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

4: (0 13 2)

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