1: (0 2 6)

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

2: (4 6 8)

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

3: (5 19 7)

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

4: (1 16 3)

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