1: (0 3 13)

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

2: (1 20 4)

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

3: (3 15 8)

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

4: (0 21 2)

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