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

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

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

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

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