1: (0 1 5)

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

2: (3 5 19)

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

3: (2 9 4)

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

4: (7 20 13)

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