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

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

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

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

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