1: (0 3 10)

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

2: (1 21 4)

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

3: (3 17 9)

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

4: (0 7 2)

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