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

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

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

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

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