1: (0 5 13)

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

2: (3 20 11)

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

3: (2 6 4)

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

4: (5 19 7)

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