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

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

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

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

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