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

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

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

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

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