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

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

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

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

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