1: (0 7 9)

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

2: (6 11 8)

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

3: (5 16 9)

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

4: (10 17 15)

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