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

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

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

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

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