1: (0 1 5)

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

2: (5 8 20)

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

3: (3 16 7)

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

4: (11 21 19)

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