1: (0 5 17)

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

2: (4 20 6)

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

3: (5 19 13)

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

4: (12 18 16)

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