1: (0 5 13)

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

2: (4 19 6)

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

3: (5 14 12)

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

4: (1 20 17)

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