1: (0 1 15)

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

2: (4 15 21)

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

3: (2 18 8)

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

4: (7 16 14)

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