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

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

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

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

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