1: (0 5 10)

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

2: (6 10 12)

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

3: (3 11 9)

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

4: (1 7 4)

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