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

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

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

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

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