1: (0 1 4)

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

2: (4 7 20)

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

3: (3 16 6)

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

4: (11 21 19)

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