1: (1 7 20)

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

2: (0 12 2)

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

3: (1 10 6)

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

4: (9 13 11)

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