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

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

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

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

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