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

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

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

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

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