1: (1 7 20)

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

2: (0 19 3)

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

3: (1 10 6)

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

4: (2 12 4)

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