1: (1 9 16)

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

2: (0 10 7)

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

3: (2 17 15)

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

4: (1 14 8)

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