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

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

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

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

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