1: (0 4 13)

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

2: (3 19 5)

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

3: (4 15 6)

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

4: (12 16 14)

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