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

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

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

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

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