1: (1 5 19)

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

2: (0 17 2)

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

3: (1 8 3)

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

4: (4 9 6)

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