1: (0 1 10)

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

2: (3 10 20)

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

3: (2 15 4)

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

4: (1 18 10)

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