1: (1 6 9)

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

2: (4 12 8)

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

3: (6 11 16)

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

4: (10 17 15)

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