1: (0 5 19)

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

2: (1 21 10)

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

3: (4 11 8)

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

4: (2 6 19)

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