1: (5 11 16)

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

2: (4 13 6)

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

3: (10 14 12)

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

4: (7 11 17)

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