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

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

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

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

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