1: (0 1 3)

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

2: (3 8 20)

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

3: (2 17 7)

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

4: (16 21 19)

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