(0 20 18)(1 21 3)(2 6 4)(5 15 13 11 7)(8 16 12 10 9)(14 19 17)
ALLOWS (11/8)-SEQUENCE
1: (0 16 18)
(0)(1 21 3)(2 6 4)(5 15 13 11 7)(8 16 20 18 12 10 9)(14 19 17)
2: (14 19 17)
(0)(1 21 3)(2 6 4)(5 15 13 11 7)(8 16 20 18 12 10 9)(14)(17)(19)
3: (12 20 18)
(0)(1 21 3)(2 6 4)(5 15 13 11 7)(8 16 20 10 9)(12)(14)(17)(18)(19)
4: (11 15 13)
(0)(1 21 3)(2 6 4)(5 15 7)(8 16 20 10 9)(11)(12)(13)(14)(17)(18)(19)