1: (0 3 15)

(0 3 19 17 15)(1 16 13 11 8)(2 9 4)(5 14 6)(7 12 10)(18 21 20)

2: (1 16 8)

(0 3 19 17 15)(1)(2 9 4)(5 14 6)(7 12 10)(8 13 11)(16)(18 21 20)

3: (2 9 4)

(0 3 19 17 15)(1)(2)(4)(5 14 6)(7 12 10)(8 13 11)(9)(16)(18 21 20)

4: (0 3 15)

(0)(1)(2)(3)(4)(5 14 6)(7 12 10)(8 13 11)(9)(15 19 17)(16)(18 21 20)