1: (0 3 6)

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

2: (6 10 18)

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

3: (5 12 8)

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

4: (1 20 7)

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