1: (0 7 19)

(0)(1 20 18 14 10 5 3)(2 7 21 19 4)(6 12 9)(8 16 15)(11 17 13)

2: (5 20 10)

(0)(1 20 3)(2 7 21 19 4)(5)(6 12 9)(8 16 15)(10 18 14)(11 17 13)

3: (6 12 9)

(0)(1 20 3)(2 7 21 19 4)(5)(6)(8 16 15)(9)(10 18 14)(11 17 13)(12)

4: (4 21 19)

(0)(1 20 3)(2 7 21)(4)(5)(6)(8 16 15)(9)(10 18 14)(11 17 13)(12)(19)