1: (5 6 11)

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

2: (5 15 8)

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

3: (4 12 9)

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

4: (10 17 13)

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