1: (0 1 17)

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

2: (4 17 20)

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

3: (1 19 6)

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

4: (3 7 5)

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