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

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

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

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

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