1: (0 2 5)

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

2: (1 6 3)

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

3: (2 5 19)

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

4: (5 19 20)

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