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

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

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

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

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