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

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

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

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

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