1: (0 3 5)

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

2: (1 7 4)

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

3: (5 10 13)

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

4: (6 14 12)

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