1: (0 1 2)

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

2: (2 8 19)

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

3: (7 21 9)

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

4: (1 19 3)

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