1: (3 7 20)

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

2: (1 11 4)

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

3: (0 19 2)

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

4: (3 18 6)

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