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

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

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

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

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