1: (1 4 18)

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

2: (0 7 2)

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

3: (6 18 9)

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

4: (3 17 5)

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