1: (0 1 5)

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

2: (5 9 19)

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

3: (4 11 7)

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

4: (8 12 10)

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