1: (0 1 3)

(0)(1 12 9 7 3 20 4)(2 11 5)(6 21 8)(10 19 18 15 13)(14 17 16)

2: (4 9 20)

(0)(1 12 9)(2 11 5)(3 20 7)(4)(6 21 8)(10 19 18 15 13)(14 17 16)

3: (2 11 5)

(0)(1 12 9)(2)(3 20 7)(4)(5)(6 21 8)(10 19 18 15 13)(11)(14 17 16)

4: (1 12 9)

(0)(1)(2)(3 20 7)(4)(5)(6 21 8)(9)(10 19 18 15 13)(11)(12)(14 17 16)