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