1: (4 11 18)

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

2: (3 15 6)

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

3: (8 16 14)

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

4: (2 7 11)

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