1: (5 10 12)

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

2: (4 11 6)

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

3: (8 13 10)

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

4: (1 9 7)

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