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

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

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

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

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