1: (1 6 9)

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

2: (5 11 7)

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

3: (8 12 10)

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

4: (3 13 9)

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