1: (0 5 11)

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

2: (4 17 7)

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

3: (1 19 16)

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

4: (3 6 11)

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