1: (0 1 16)

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

2: (4 16 21)

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

3: (3 19 6)

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

4: (1 20 16)

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