1: (0 4 16)

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

2: (1 20 5)

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

3: (4 19 14)

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

4: (2 15 13)

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