1: (0 3 16)

(0)(1 20 4)(2 6 3 19 16)(5 18 13 10 8)(7 22 21)(9 14 11)(12 17 15)

2: (1 20 4)

(0)(1)(2 6 3 19 16)(4)(5 18 13 10 8)(7 22 21)(9 14 11)(12 17 15)(20)

3: (3 19 6)

(0)(1)(2 6 16)(3)(4)(5 18 13 10 8)(7 22 21)(9 14 11)(12 17 15)(19)(20)

4: (5 18 13)

(0)(1)(2 6 16)(3)(4)(5 10 8)(7 22 21)(9 14 11)(12 17 15)(13)(18)(19)(20)