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

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

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

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

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