1: (3 7 11)

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

2: (5 12 8)

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

3: (2 6 4)

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

4: (1 9 7)

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