1: (0 3 19)

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

2: (2 21 11)

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

3: (0 3 19)

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

4: (1 12 9)

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