1: (0 3 4)

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

2: (4 18 20)

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

3: (17 21 19)

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

4: (3 20 16)

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