1: (0 5 10)

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

2: (1 20 6)

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

3: (5 12 7)

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

4: (9 19 11)

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