1: (0 3 4)

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

2: (4 7 19)

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

3: (6 21 9)

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

4: (3 19 5)

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