1: (0 2 4)

(0)(1 20 3)(2 11)(4 15)(5 14 12 9 6)(7 10 8)(13 18 16)(17 21 19)

2: (1 20 3)

(0)(1)(2 11)(3)(4 15)(5 14 12 9 6)(7 10 8)(13 18 16)(17 21 19)(20)

3: (2 4 11)

(0)(1)(2)(3)(4 11 15)(5 14 12 9 6)(7 10 8)(13 18 16)(17 21 19)(20)

4: (4 11 15)

(0)(1)(2)(3)(4)(5 14 12 9 6)(7 10 8)(11)(13 18 16)(15)(17 21 19)(20)