1: (0 1 4)

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

2: (3 15 21)

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

3: (2 19 8)

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

4: (1 20 15)

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