1: (0 5 12)

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

2: (3 20 11)

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

3: (2 6 4)

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

4: (5 13 7)

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