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

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

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

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

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