1: (1 4 16)

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

2: (2 17 6)

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

3: (0 5 3)

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

4: (9 18 16)

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