1: (0 1 5)

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

2: (3 5 21)

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

3: (2 6 4)

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

4: (1 11 5)

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