1: (3 8 13)

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

2: (0 8 6)

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

3: (1 19 4)

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

4: (7 14 9)

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