1: (0 3 8)

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

2: (2 20 4)

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

3: (3 14 5)

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

4: (1 15 13)

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