1: (5 9 20)

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

2: (0 19 8)

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

3: (4 11 6)

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

4: (1 5 10)

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