1: (0 3 8)

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

2: (5 8 21)

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

3: (4 10 6)

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

4: (3 17 8)

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