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

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

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

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

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