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

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

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

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

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