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

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

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

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

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