1: (0 2 4)

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

2: (1 6 3)

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

3: (4 16 18)

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

4: (14 19 17)

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