1: (0 2 7)

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

2: (1 20 4)

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

3: (3 12 5)

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

4: (4 9 6)

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