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

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

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

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

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