1: (0 2 4)

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

2: (4 10 18)

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

3: (7 19 12)

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

4: (6 11 8)

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