1: (1 11 15)

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

2: (3 9 15)

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

3: (7 12 10)

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

4: (2 17 4)

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