1: (0 1 15)

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

2: (13 15 21)

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

3: (9 16 14)

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

4: (1 20 15)

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