1: (0 5 11)

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

2: (3 13 10)

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

3: (2 6 4)

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

4: (5 12 7)

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