1: (0 8 16)

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

2: (6 19 13)

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

3: (5 11 16)

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

4: (10 14 12)

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