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