1: (1 5 16)

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

2: (0 14 2)

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

3: (11 19 15)

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

4: (1 20 3)

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