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

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

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

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

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