1: (0 3 11)

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

2: (1 20 9)

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

3: (2 19 5)

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

4: (3 12 16)

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