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

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

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

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

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