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

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

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

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

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