1: (0 3 9)

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

2: (1 14 6)

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

3: (2 21 4)

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

4: (0 20 13)

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