1: (0 1 10)

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

2: (1 10 12)

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

3: (9 14 11)

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

4: (10 12 19)

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