1: (0 3 17)

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

2: (1 20 6)

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

3: (5 17 7)

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

4: (2 14 4)

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