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