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

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

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

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

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