1: (0 3 16)

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

2: (1 20 6)

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

3: (3 19 10)

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

4: (9 17 11)

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