1: (0 1 4)

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

2: (4 8 20)

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

3: (1 13 6)

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

4: (11 21 19)

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