1: (0 1 16)

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

2: (5 16 21)

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

3: (4 18 11)

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

4: (1 20 16)

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