1: (5 11 16)

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

2: (4 15 6)

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

3: (5 14 8)

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

4: (7 13 10)

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