1: (0 2 7)

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

2: (6 7 8)

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

3: (1 19 4)

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

4: (2 12 7)

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