1: (0 3 7)

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

2: (5 7 21)

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

3: (4 8 6)

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

4: (3 15 7)

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