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

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

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

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

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