1: (0 4 12)

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

2: (1 20 6)

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

3: (4 17 10)

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

4: (3 8 5)

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