1: (0 1 6)

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

2: (4 6 20)

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

3: (2 12 5)

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

4: (1 18 6)

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