1: (0 1 6)

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

2: (1 7 16)

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

3: (2 19 12)

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

4: (11 17 15)

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