1: (3 7 16)

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

2: (1 11 6)

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

3: (0 4 2)

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

4: (3 8 18)

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