1: (0 2 15)

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

2: (1 20 4)

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

3: (2 17 12)

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

4: (14 19 16)

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