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