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

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

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

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

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