1: (10 15 16)

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

2: (5 8 16)

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

3: (4 9 6)

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

4: (8 17 15)

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