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

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

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

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

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