1: (0 4 15)

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

2: (3 16 4)

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

3: (1 20 9)

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

4: (2 18 6)

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