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

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

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

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

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