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

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

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

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

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