1: (0 3 7)

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

2: (5 7 21)

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

3: (4 11 6)

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

4: (2 14 8)

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