1: (5 8 16)

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

2: (3 11 6)

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

3: (2 14 4)

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

4: (10 16 12)

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