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

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

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

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

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