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

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

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

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

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