1: (0 3 18)

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

2: (1 20 4)

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

3: (0 3 18)

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

4: (2 19 16)

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