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

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

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

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

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