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

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

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

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

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