1: (1 6 13)

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

2: (4 6 7)

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

3: (3 14 12)

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

4: (1 9 6)

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