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

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

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

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

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