1: (3 10 16)

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

2: (1 12 4)

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

3: (9 17 11)

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

4: (2 16 8)

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