1: (5 12 15)

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

2: (4 14 6)

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

3: (5 12 15)

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

4: (10 17 13)

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