1: (0 4 7)

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

2: (4 11 18)

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

3: (3 9 5)

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

4: (1 20 6)

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