1: (2 5 11)

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

2: (4 20 6)

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

3: (0 19 3)

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

4: (1 11 10)

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