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

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

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

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

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