1: (0 1 3)

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

2: (1 5 7)

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

3: (4 8 6)

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

4: (3 21 7)

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