1: (3 10 17)

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

2: (2 3 4)

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

3: (1 11 8)

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

4: (3 17 6)

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