1: (0 1 12)

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

2: (3 12 20)

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

3: (2 13 11)

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

4: (1 17 12)

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