1: (0 1 5)

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

2: (5 9 19)

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

3: (4 12 6)

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

4: (8 13 10)

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