1: (0 2 3)

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

2: (6 10 15)

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

3: (9 21 13)

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

4: (5 12 8)

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