(0 21 2)(1 7 5)(3 19 4)(6 11 8)(9 20 17 15 13)(10 14 12)(16 22 18)
ALLOWS (11/8)-SEQUENCE
1: (1 7 9)

(0 21 2)(1 20 17 15 13 9 5)(3 19 4)(6 11 8)(7)(10 14 12)(16 22 18)
2: (6 11 8)

(0 21 2)(1 20 17 15 13 9 5)(3 19 4)(6)(7)(8)(10 14 12)(11)(16 22 18)
3: (5 13 9)

(0 21 2)(1 20 17 15 13)(3 19 4)(5)(6)(7)(8)(9)(10 14 12)(11)(16 22 18)
4: (10 14 12)

(0 21 2)(1 20 17 15 13)(3 19 4)(5)(6)(7)(8)(9)(10)(11)(12)(14)(16 22 18)