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

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

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

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

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