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