1: (1 9 15)

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

2: (0 11 2)

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

3: (1 9 15)

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

4: (5 12 10)

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