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

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

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

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

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