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

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

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

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

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