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

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

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

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

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