1: (0 4 13)

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

2: (2 16 9)

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

3: (3 10 8)

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

4: (1 6 13)

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