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

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

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

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

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