1: (1 5 15)

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

2: (0 6 2)

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

3: (5 20 13)

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

4: (7 16 14)

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