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

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

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

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

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