1: (0 1 5)

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

2: (3 5 21)

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

3: (2 6 4)

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

4: (1 17 5)

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