1: (0 1 16)

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

2: (3 16 20)

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

3: (14 21 19)

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

4: (11 17 15)

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