1: (0 3 7)

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

2: (1 20 4)

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

3: (2 12 6)

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

4: (0 21 19)

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