(0 20 18)(1 21 16 5 3)(2 6 4)(7 12 10)(8 22 9)(11 15 13)(14 19 17)
ALLOWS (11/8)-SEQUENCE
1: (0 1 18)

(0)(1 20 18 21 16 5 3)(2 6 4)(7 12 10)(8 22 9)(11 15 13)(14 19 17)
2: (16 18 21)

(0)(1 20 18 5 3)(2 6 4)(7 12 10)(8 22 9)(11 15 13)(14 19 17)(16)(21)
3: (14 19 17)

(0)(1 20 18 5 3)(2 6 4)(7 12 10)(8 22 9)(11 15 13)(14)(16)(17)(19)(21)
4: (5 20 18)

(0)(1 20 3)(2 6 4)(5)(7 12 10)(8 22 9)(11 15 13)(14)(16)(17)(18)(19)(21)