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

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

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

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

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